Wifi unstable and extremely slow on my Aspire V Nitro VN7-591G-7.

Hi again ! My previous problem is now solved. But now I have issues with my wifi. The wifi works perfectly on other devices but on my Aspire V Nitro VN7-591G-7, it's just impossible to do anything on the internet... I've read it's a common problem and there are solutions. What steps should I follow in order to solve this ? I'm running Windows 8.1 by the way. I really like the performances of this computer so I wish to get rid of this stupid problem ! Thank you very much.

Can you describe "unstable and extremely slow" in more detail. Are you connected to the 5 GHz band of your wireless router or are you connected to the 2.4 GHz band? Are you having problems with all websites or just a few? Which web browser are you using? IE or chrome or firefox? What is the model # of your wireless router? Is your wireless router supplied by your ISP? Or did you buy it retail? What BIOS version is currently installed on you laptop? What BIOS version is designated as the latest version on Acer's website? Does the problem occur when you use other people's wifi such as a friend, relative or neighbor? Have you tested it somewhere besides your home? Does Acer's website list an updated wireless driver for your computer? http://us.acer.com/ac/en/US/content/drivers

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Aspire V15 Nitro (VN7-591G-51CY) WiFi Problems?

If you are having wireless issues I would suggest calling Acer Technical Support and see about having the unit brought in for service for testing to make sure there isn't a hardware issue. Here is the contact number for France, since someone posted they were having issues in France.
France
SAV Acer Group
Quai 12 / 13
299 Avenue Patton
49006 Angers
Tel : +33(0)969320342
Fax: +33(0)148635344

Hello,I would like to buy the Aspire V15 Nitro Black Edition (VN7-591G-51CY) with Intel I5, nVidia GTX860M and 8GB RAM. But as I read, some people have problems with WiFi connection. I mean they are being disconnected or the speed is extremely low. Does anyone here have the same problems? Does exist an option, how to fix this issue? What are your other experiences with this notebook? I am now not sure, if buying this notebook is a right decision, because of this issue (I use WiFi at home, we have many devices using WiFi...).
Thank you,Fraosius (I am sorry, if I made some English mistakes, I am from Czech Republic )

I upgraded macbook to Yosemite, and now its become unbearable and extremely slow

Problem description:
I upgraded macbook to Yosemite, and now its become unbearable and extremely slow, I’ve deleted multiple files, and it is still extremely slow, I’ve also repaired disk permissions but it did little to nothing
EtreCheck version: 2.0.8 (95)
Report generated October 31, 2014 at 4:57:08 PM EDT
Hardware Information: ℹ️
MacBook Pro (13-inch, Early 2011) (Verified)
MacBook Pro - model: MacBookPro8,1
1 2.3 GHz Intel Core i5 CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 3000 - VRAM: 384 MB
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 0:25:44
Disk Information: ℹ️
Hitachi HTS545032B9A302 disk0 : (320.07 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / [Startup]: 318.84 GB (148.50 GB free)
Encrypted AES-XTS UnlockedConverting
Core Storage: disk0s2 319.21 GB Online
MATSHITADVD-R   UJ-898
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Configuration files: ℹ️
/etc/hosts - Count: 51
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Library/Application Support/Symantec/Protector
[not loaded] com.symantec.kext.protector.panther (1.0f5) Support
[not loaded] com.symantec.kext.protector.tigerplus (1.0f5) Support
/Library/Extensions
[not loaded] xxx.qnation.PeerGuardian (1.1.9) Support
/Library/Sophos Anti-Virus/InterCheck.app
[not loaded] com.sophos.kext.sav (8.0.4 - SDK 10.5) Support
/Library/StartupItems/SymAutoProtect
[not loaded] com.Symantec.kext.SAVAPComm (11.0.6) Support
/System/Library/Extensions
[not loaded] com.wacom.kext.pentablet (5.2.5) Support
Startup Items: ℹ️
NortonMissedTasks: Path: /Library/StartupItems/NortonMissedTasks
SMC: Path: /Library/StartupItems/SMC
SymAutoProtect: Path: /Library/StartupItems/SymAutoProtect
SymProtector: Path: /Library/StartupItems/SymProtector
Startup items are obsolete and will not work in future versions of OS X
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[running] com.symantec.quickmenu.application.plist Support
[running] com.wacom.pentablet.plist Support
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist Support
[invalid?] com.adobe.SwitchBoard.plist Support
[running] com.sophos.autoupdate.plist Support
[failed] com.sophos.intercheck.plist Support
[running] com.sophos.notification.plist Support
[failed] xxx.qnation.PeerGuardian.kextload.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist Support
[invalid?] com.adobe.ARM.[...].plist Support
[loaded] com.facebook.videochat.[redacted].plist Support
[loaded] com.spotify.webhelper.plist Support
User Login Items: ℹ️
None
Internet Plug-ins: ℹ️
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
FlashPlayer-10.6: Version: 15.0.0.152 - SDK 10.6 Support
Default Browser: Version: 600 - SDK 10.10
AdobePDFViewerNPAPI: Version: 10.1.12 Support
AdobePDFViewer: Version: 10.1.12 Support
Flash Player: Version: 15.0.0.152 - SDK 10.6 Mismatch! Adobe recommends 15.0.0.189
QuickTime Plugin: Version: 7.7.3
WacomNetscape: Version: 1.1.1-1 Support
WacomSafari: Version: 1.1.1-1 Support
Silverlight: Version: 5.1.10411.0 - SDK 10.6 Support
iPhotoPhotocast: Version: 7.0 - SDK 10.8
Safari Extensions: ℹ️
DuckDuckGo
3rd Party Preference Panes: ℹ️
Flash Player Support
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
      6% WindowServer
      2% kextd
      0% AppleSpell
      0% launchd
      0% ocspd
Top Processes by Memory: ℹ️
228 MB com.apple.WebKit.WebContent
137 MB Safari
103 MB Messages
69 MB Spotlight
64 MB CalendarAgent
Virtual Memory Information: ℹ️
96 MB Free RAM
1.46 GB Active RAM
1.35 GB Inactive RAM
1.00 GB Wired RAM
2.12 GB Page-ins
9 MB Page-outs

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of the script have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a summary of what you need to do, if you choose to proceed:
☞ Copy a line of text in this window to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
The sequence is: copy, paste, wait, paste again. You don't need to copy a second time. Details follow.
5. You may have started the computer in "safe" mode. Preferably, these steps should be taken in “normal” mode, under the conditions in which the problem is reproduced. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. The script is a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, though you may not see all of it in the browser window, and you can then copy it. If you try to select the line by dragging across the part you can see, you won't get all of it.
Triple-click anywhere in the line of text below on this page to select it:
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/libexec;clear;cd;p=(Software Hardware Memory Diagnostics Power FireWire Thunderbolt USB Fonts SerialATA 4 1000 25 5120 KiB/s 1024 85 \\b%% 20480 1 MB/s 25000 ports ' com.clark.\* \*dropbox \*genieo\* \*GoogleDr\* \*k.AutoCAD\* \*k.Maya\* vidinst\* ' DYLD_INSERT_LIBRARIES\ DYLD_LIBRARY_PATH -86 "` route -n get default|awk '/e:/{print $2}' `" 25 N\\/A down up 102400 25600 recvfrom sendto CFBundleIdentifier 25 25 25 1000 MB ' com.adobe.AAM.Updater-1.0 com.adobe.CS4ServiceManager com.adobe.CS5ServiceManager com.adobe.fpsaud com.adobe.SwitchBoard com.apple.AirPortBaseStationAgent com.apple.installer.osmessagetracing com.apple.SafariNotificationAgent com.apple.usbmuxd com.apple.xprotectupdater com.google.keystone.agent com.google.keystone.daemon com.microsoft.office.licensing.helper com.oracle.java.Helper-Tool com.oracle.java.JavaUpdateHelper ' ' 879294308 3627668074 1083382502 1274181950 1855907737 464843899 1233118628 2636415542 842973933 4019080058 3301885676 891055588 998894468 695903914 1443423563 ' 51 5120 files );N5=${#p[@]};p[N5]=` networksetup -listnetworkserviceorder|awk ' NR>1 { sub(/^$[0-9]+$ /,"");n=$0;getline;} $NF=="'${p[26]}')" { sub(/.$/,"",$NF);print n;exit;} ' `;f=('\n%s: %s\n' '\n%s\n\n%s\n' '\nRAM details\n%s\n' %s\ %s '%s\n-\t%s\n' );S0() { echo ' { q=$NF+0;$NF="";u=$(NF-1);$(NF-1)="";gsub(/^ +| +$/,"");if(q>='${p[$1]}') printf("%s (UID %s) is using %s '${p[$2]}'",$0,u,q);} ';};s=(' s/[0-9A-Za-z._]+@[0-9A-Za-z.]+\.[0-9A-Za-z]{2,4}/EMAIL/g;/faceb/s/(at\.)[^.]+/\1NAME/g;/\/Shared/!s/(\/Users\/)[^ /]+/\1USER/g;s/[-0-9A-Fa-f]{22,}/UUID/g;' ' s/^ +//;/de: S|[nst]:/p;' ' {sub(/^ +/,"")};/er:/;/y:/&&$2<'${p[10]} ' 1s/://;3,6d;/[my].+:/d;s/^ {4}//;H;${ g;s/\n$//;/s: [^EO]|x([^08]|02[^F]|8[^0])/p;} ' ' 5h;6{ H;g;/P/!p;} ' ' ($1~/^Cy/&&$3>'${p[11]}')||($1~/^Cond/&&$2!~/^N/) ' ' /:$/{ N;/:.+:/d;s/ *://;b0'$'\n'' };/^ *(V.+ [0N]|Man).+ /{ s/ 0x.... //;s/[()]//g;s/(.+: )(.+)/ (\2)/;H;};$b0'$'\n'' d;:0'$'\n'' x;s/\n\n//;/Apple[ ,]|Genesy|Intel|SMSC/d;s/\n.*//;/\)$/p;' ' s/^.*C/C/;H;${ g;/No th|pms/!p;} ' '/= [^GO]/p' '{$1=""};1' ' /Of/!{ s/^.+is |\.//g;p;} ' ' $0&&!/ / { n++;print;} END { split("'"${p[41]}"'",b);for(i in b) print b[i];if(n<10) print "com.apple.";} ' ' $3~/[0-9]:[0-9]{2}$/ { gsub(/:[0-9:a-f]{14}/,"");} { print|"tail -n'${p[12]}'";} ' ' NR==2&&$4<='${p[13]}' { print $4;} ' ' END { $2/=256;if($2>='${p[15]}') print int($2) } ' ' NR!=13{next};{sub(/[+-]$/,"",$NF)};'"`S0 21 22`" 'NR!=2{next}'"`S0 37 17`" ' NR!=5||$8!~/[RW]/{next};{ $(NF-1)=$1;$NF=int($NF/10000000);for(i=1;i<=3;i++){$i="";$(NF-1-i)="";};};'"`S0 19 20`" 's:^:/:p' '/\.kext\/(Contents\/)?Info\.plist$/p' 's/^.{52}(.+) <.+/\1/p' ' /Launch[AD].+\.plist$/ { n++;print;} END { split("'"${p[41]}"'",b);for(i in b) print b[i]".plist";if(n<200) print "/System/";} ' '/\.xpc\/(Contents\/)?Info\.plist$/p' ' NR>1&&!/0x|\.[0-9]+$|com\.apple\.launchctl\.(Aqua|Background|System)$/ { print $3;} ' ' /\.(framew|lproj)|\):/d;/plist:|:.+(Mach|scrip)/s/:[^:]+//p ' '/^root$/p' ' !/\/Contents\/.+\/Contents|Applic|Autom|Frameworks/&&/Lib.+\/Info.plist$/ { n++;print;} END { if(n<1100) print "/System/";} ' '/^\/usr\/lib\/.+dylib$/p' ' /Temp|emac/{next};/(etc|Preferences|Launch[AD].+)\// { sub(".(/private)?","");n++;print;} END { split("'"${p[41]}"'",b);split("'"${p[42]}"'",c);for(i in b) print b[i]".plist\t"c[i];if(n<500) print "Launch";} ' ' /\/(Contents\/.+\/Contents|Frameworks)\/|\.wdgt\/.+\.([bw]|plu)/d;p;' 's/\/(Contents\/)?Info.plist$//;p' ' { gsub("^| |\n","\\|\\|kMDItem'${p[35]}'=");sub("^...."," ") };1 ' p '{print $3"\t"$1}' 's/\'$'\t''.+//p' 's/1/On/p' '/Prox.+: [^0]/p' '$2>'${p[43]}'{$2=$2-1;print}' ' BEGIN { i="'${p[26]}'";M1='${p[16]}';M2='${p[18]}';M3='${p[31]}';M4='${p[32]}';} !/^A/{next};/%/ { getline;if($5<M1) a="user "$2"%, system "$4"%";} /disk0/&&$4>M2 { b=$3" ops/s, "$4" blocks/s";} $2==i { if(c) { d=$3+$4+$5+$6;next;};if($4>M3||$6>M4) c=int($4/1024)" in, 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("C")";printf("\nContents of %s\n%s\n",F,f);if(l>L) printf("\n   ...and %s more line(s)\n",l-L);} ' ' s/^ ?n...://p;s/^ ?p...:/-'$'\t''/p;' 's/0/Off/p' ' END{print NR} ' ' /id: N|te: Y/{i++} END{print i} ' ' / / { print "'"${p[28]}"'";exit;};1;' '/ en/!s/\.//p' ' NR!=13{next};{sub(/[+-M]$/,"",$NF)};'"`S0 39 40`" ' $10~/\(L/&&$9!~"localhost" { sub(/.+:/,"",$9);print $1": "$9;} ' '/^ +r/s/.+"(.+)".+/\1/p' 's/(.+\.wdgt)\/(Contents\/)?Info\.plist$/\1/p' 's/^.+\/(.+)\.wdgt$/\1/p' ' /l: /{ /DVD/d;s/.+: //;b0'$'\n'' };/s: /{ /V/d;s/^ */- /;H;};$b0'$'\n'' d;:0'$'\n'' x;/APPLE [^:]+$/d;p;' ' /^find: /d;p;' "`S0 44 45`" ' BEGIN{FS="= "} /Path/{print $2} ' ' /^ *$/d;s/^ */   /;' ' /:/d;/\./p;' '/\.appex\/Contents\/Info\.plist$/p' );c1=(system_profiler pmset\ -g nvram fdesetup find syslog df vm_stat sar ps sudo\ crontab sudo\ iotop top pkgutil 'PlistBuddy 2>&1 -c "Print' whoami cksum kextstat launchctl sudo\ launchctl crontab 'sudo defaults read' stat lsbom mdfind ' for i in ${p[24]};do ${c1[18]} ${c2[27]} $i;done;' defaults\ read scutil sudo\ dtrace sudo\ profiles sed\ -En awk /S*/*/P*/*/*/C*/*/airport networksetup mdutil sudo\ lsof test osascript\ -e );c2=(com.apple.loginwindow\ LoginHook '" /L*/P*/loginw*' "'tell app \"System Events\" to get properties of login items'|tr , \\\n" 'L*/Ca*/com.ap*.Saf*/E*/* -d 1 -name In*t -exec '"${c1[14]}"' :CFBundleDisplayName" {} \;|sort|uniq' '~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $' '.??* -path .Trash -prune -o -type d -name *.app -print -prune' :${p[35]}\" :Label\" '{/,}L*/{Con,Pref}* -type f ! -size 0 -name *.plist -exec plutil -s {} \;' "-f'%N: %l' Desktop L*/Keyc*" therm sysload boot-args status " -F '\$Time \$Message' -k Sender kernel -k Message Req 'bad |Beac|caug|corru|dead[^bl]|FAIL|fail|GPU |hfs: Ru|inval|jnl:|last value [1-9]|n Cause: -|NVDA$|pagin|proc: t|Roamed|rror|ssert|Thrott|tim(ed? ?|ing )o|WARN' -k Message Rne 'Goog|ksadm|SMC:|suhel| VALI|ver-r|xpma' -o -k Sender fseventsd -k Message Req 'SL' " '-du -n DEV -n EDEV 1 10' 'acrx -o comm,ruid,%cpu' '-t1 10 1' '-f -pfc /var/db/r*/com.apple.*.{BS,Bas,Es,J,OSXU,Rem,up}*.bom' '{/,}L*/Lo*/Diag* -type f -regex .\*[cght] ! -name .?\* ! -name \*ag \( -exec grep -lq "^Thread c" {} \; -exec printf \* \; -o -true $ -execdir stat -f:%Sc:%N -t%F {} \;|sort -t: -k2 |tail -n'${p[38]} '/S*/*/Ca*/*xpc* >&- ||echo No' '-L /{S*/,}L*/StartupItems -type f -exec file {} +' '-L /S*/L*/{C*/Sec*A,Ex}* {/,}L*/{A*d,Ca*/*/Ex,Co{mpon,reM},Ex,In{p,ter},iTu*/*P,Keyb,Mail/B,Pr*P,Qu*T,Scripti,Sec,Servi,Spo,Widg}* -path \\*s/Resources -prune -o -type f -name Info.plist' '/usr/lib -type f -name *.dylib' `awk "${s[31]}"<<<${p[23]}` "/e*/{auto,{cron,fs}tab,hosts,{[lp],sy}*.conf,mach_i*/*,pam.d/*,ssh{,d}_config,*.local} {,/usr/local}/etc/periodic/*/* /L*/P*{,/*}/com.a*.{Bo,sec*.ap}*t {/S*/,/,}L*/Lau*/*t .launchd.conf" list getenv /Library/Preferences/com.apple.alf\ globalstate --proxy '-n get default' -I --dns -getdnsservers\ "${p[N5]}" -getinfo\ "${p[N5]}" -P -m\ / '' -n1 '-R -l1 -n1 -o prt -stats command,uid,prt' '--regexp --only-files --files com.apple.pkg.*|sort|uniq' -kl -l -s\ / '-R -l1 -n1 -o mem -stats command,uid,mem' '+c0 -i4TCP:0-1023' com.apple.dashboard\ layer-gadgets '-d /L*/Mana*/$USER&&echo On' '-app Safari WebKitDNSPrefetchingEnabled' "+c0 -l|awk '{print(\$1,\$3)}'|sort|uniq -c|sort -n|tail -1|awk '{print(\$2,\$3,\$1)}'" 'L*/P*/com.ap*.p*.ext*.*.*t -exec '"${c1[14]}"' :displayOrder" {} \;' );N1=${#c2[@]};for j in {0..9};do c2[N1+j]=SP${p[j]}DataType;done;N2=${#c2[@]};for j in 0 1;do c2[N2+j]="-n ' syscall::'${p[33+j]}':return { @out[execname,uid]=sum(arg0) } tick-10sec { trunc(@out,1);exit(0);} '";done;l=(Restricted\ files Hidden\ apps 'Elapsed time (s)' POST Battery Safari\ extensions Bad\ plists 'High file counts' User Heat System\ load boot\ args FileVault Diagnostic\ reports Log 'Free space (MiB)' 'Swap (MiB)' Activity 'CPU per process' Login\ hook 'I/O per process' Mach\ ports kexts Daemons Agents XPC\ cache Startup\ items Admin\ access Root\ access Bundles dylibs Apps Font\ issues Inserted\ dylibs Firewall Proxies DNS TCP/IP Wi-Fi Profiles Root\ crontab User\ crontab 'Global login items' 'User login items' Spotlight Memory Listeners Widgets Parental\ Controls Prefetching SATA Descriptors appexes );N3=${#l[@]};for i in 0 1 2;do l[N3+i]=${p[5+i]};done;N4=${#l[@]};for j in 0 1;do l[N4+j]="Current ${p[29+j]}stream data";done;A0() { id -G|grep -qw 80;v[1]=$?;((v[1]==0))&&sudo true;v[2]=$?;v[3]=`date +%s`;clear >&-;date '+Start time: %T %D%n';};for i in 0 1;do eval ' A'$((1+i))'() { v=` eval "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};A'$((3+i))'() { v=` while read i;do [[ "$i" ]]&&eval "${c1[$1]} ${c2[$2]}" \"$i\"|'${c1[30+i]}' "${s[$3]}";done<<<"${v[$4]}" `;[[ "$v" ]];};A'$((5+i))'() { v=` while read i;do '${c1[30+i]}' "${s[$1]}" "$i";done<<<"${v[$2]}" `;[[ "$v" ]];};';done;A7(){ v=$((`date +%s`-v[3]));};B2(){ v[$1]="$v";};for i in 0 1;do eval ' B'$i'() { v=;((v['$((i+1))']==0))||{ v=No;false;};};B'$((3+i))'() { v[$2]=`'${c1[30+i]}' "${s[$3]}"<<<"${v[$1]}"`;} ';done;B5(){ v[$1]="${v[$1]}"$'\n'"${v[$2]}";};B6() { v=` paste -d: <(printf "${v[$1]}") <(printf "${v[$2]}")|awk -F: ' {printf("'"${f[$3]}"'",$1,$2)} ' `;};B7(){ v=`grep -Fv "${v[$1]}"<<<"$v"`;};C0() { [[ "$v" ]]&&sed -E "$s"<<<"$v";};C1() { [[ "$v" ]]&&printf "${f[$1]}" "${l[$2]}" "$v"|sed -E "$s";};C2() { v=`echo $v`;[[ "$v" != 0 ]]&&C1 0 $1;};C3() { v=`sed -E "${s[63]}"<<<"$v"`&&C1 1 $1;};for i in 1 2;do for j in 0 2 3;do eval D$i$j'(){ A'$i' $1 $2 $3; C'$j' $4;};';done;done;{ A0;D20 0 $((N1+1)) 2;D10 0 $N1 1;B0;C2 27;B0&&! B1&&C2 28;D12 15 37 25 8;A1 0 $((N1+2)) 3;C0;D13 0 $((N1+3)) 4 3;D23 0 $((N1+4)) 5 4;D13 0 $((N1+9)) 59 50;for i in 0 1 2;do D13 0 $((N1+5+i)) 6 $((N3+i));done;D13 1 10 7 9;D13 1 11 8 10;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 14 12 14;D22 6 36 13 15;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D22 35 49 61 51;D22 11 17 17 20;for i in 0 1;do D22 28 $((N2+i)) 45 $((N4+i));done;};D22 12 44 54 45;D22 12 39 15 21;A1 13 40 18;B2 4;B3 4 0 19;A3 14 6 32 0;B4 0 5 11;A1 17 41 20;B7 5;C3 22;B4 4 6 21;A3 14 7 32 6;B4 0 7 11;B3 4 0 22;A3 14 6 32 0;B4 0 8 11;B5 7 8;B1&&{ A2 19 26 23;B7 7;C3 23;};A2 18 26 23;B7 7;C3 24;D13 4 21 24 26;B4 4 12 26;B3 4 13 27;A1 4 22 29;B7 12;B2 14;A4 14 6 52 14;B2 15;B6 14 15 4;B3 0 0 30;C3 29;A1 4 23 27;B7 13;C3 30;B3 4 0 65;A3 14 6 32 0;B4 0 16 11;A1 4 50 64;B7 16;C3 52;D13 24 24 32 31;D13 25 37 32 33;A2 23 18 28;B2 16;A2 16 25 33;B7 16;B3 0 0 34;B2 21;A6 47 21&&C0;B1&&{ D13 21 0 32 19;D13 10 42 32 40;D22 29 35 46 39;};D23 14 1 62 42;D12 34 43 53 44;D12 22 20 32 25;D22 0 $((N1+8)) 51 32;D13 4 8 41 6;D12 26 28 35 34;D13 27 29 36 35;A2 27 32 39&&{ B2 19;A2 33 33 40;B2 20;B6 19 20 3;};C2 36;D23 33 34 42 37;B1&&D23 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 20 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 26 48 49 49;B3 4 22 57;A1 26 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D23 22 9 37 7;A7;C2 2;} 2>/dev/null|pbcopy;exit 2>&-
Copy the selected text to the Clipboard by pressing the key combination command-C.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Click anywhere in the Terminal window and paste by pressing command-V. The text you pasted should vanish immediately. If it doesn't, press the return key.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. In most cases, the difference is not important. If you don't know the password, or if you prefer not to enter it, press the key combination control-C or just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, there will be nothing in the Terminal window and no indication of progress. Wait for the line
[Process completed]
to appear. If you don't see it within half an hour or so, the test probably won't complete in a reasonable time. In that case, close the Terminal window and report what happened. No harm will be done.
12. When the test is complete, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "You are not authorized to post." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak only for themselves, and I don't necessarily agree with them.
Copyright © 2014 by Linc Davis. As the sole author of this work, I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

WiFi Breaking and getting slow in MacBook Pro after upgrading to OS X Yosemite

WiFi Breaking and getting slow in MacBook Pro after upgrading to OS X Yosemite

WiFi Breaking and getting slow in MacBook Pro after upgrading to OS X Yosemite

Install Windows 8.1 Pro on Acer Aspire V Nitro VN7-591

Hi forum, I recently bought the Acer Aspire V Nitro VN7-591 and I noticed that it only comes with the Core Edition of Windows 8.1. As I need some of the features of the Windows 8.1 Pro Edition (joining domains, remote display etc.) I would like to upgrade the System to Windows 8.1 Pro. I still have an unused Pro retail key (no OEM, no Upgrade Pack) here so at the moment I'm downloading the ISO for Windows 8.1 Pro. But prior to installation I would like to make sure that everything works out fine and I don't run intro problems. First of all: is there anything I need to save from the old OS (except from the recovery partition- I already saved that to a USB drive using the recovery program provided by Acer)? Do I have to know my Product Key (using for example a key viewer software) just in case? Do I have to disable secure boot in BIOS? Second: can I just install Windows 8.1 Pro using my ISO and installing the drivers from the Acer support website? Drivers should still work, right? Third: if I ever want to switch back to Windows 8.1 Core (the OEM edition) do I just use the USB pen drive created with the acer recovery tool? Will my retail Windows 8.1 Pro Key be usable again if I switch back to the original OS? Sorry for asking that many questions but I just have to make sure that it runs trough right in the first place because I need the Laptop to function. What would be your standard procedure to this kind of "problem"? Thanks in advance and with regards,The_DJ Edit:I might have forgotten to mention that I want to do a clean reinstall without all the bloatware from Acer. That's why I'm using the Windows 8.1 Pro "Vanilla" ISO and if I ever want to switch back to core use the Windows 8.1 Core "Vanilla" ISO. Is that possible or would I have to use the recovery partition saved to my USB drive?

Changing the Operating System may cause driver conflicts. The compatible drivers for Windows 8.1 will not be available in the website for this laptop. Hence, some of the features on the laptop might not work after changing the OS. 1: Since you have already created the USB recovery media from the laptop, you do not have to copy anything else other than this. Make sure you you backup all files before installing the OS, as it will remove all data from the laptop. I see that, you have the unused Pro retail key for the OS, hence, you do not have to have the OEM product key. You need to use the product key for Windows 8.1 Pro to activate it, not the Acer OEM product key. In the BIOS, select BOOT tab. Select BOOT MODE as Legacy Mode instead of UEFI.Disable Secure Boot. Under Boot Priority Order, you need to select 1 as CD/DVD (if you are using disc), or USB FDD or USB HDD (if you are using USB drive) to install Windows 8.1 Pro. Then press the F10 key and select "Yes" to save the changes in BIOS. ->You an install Windows 8.1 Pro using my ISO and installing the drivers from the Acer support website. As said before, there may driver conflicts. -> If you want to switch back to Windows 8.1, you may use the USB reovery drive (which created you have created from the recovery partition). When you do this, the Windows 8.1 Pro and it's product key will be removed from the laptop and the factory shipped OS, drivers, apps (and the OEM product key) will be installed automatically. You do not have to use the Windows 8.1 Pro key with Acer OEM USB reovery media. -> You need to do a clean install using the USB recovery drive to install factory shipped Windows on the laptop.

MBP 5.1 I have a recent problem with airport connectivity. ethernet connection is working fine, but wifi has become extremely slow and bad functioning. signal is received, no problem with the wlan (my husband 's wifi with MBP is perfect) please help

I have a MBP 5.1 with snow leopard 10.6.8. It has been working fine until few days ago, when it started to have different problems:
1) airport is not working well. it is extremely slow, has difficulties in fully loading pages, looses connectivity, It is not browser related, behaves thesame in safari or firefox; it is not the router/wlan; my husband mbp wifi works fine (as it was mine...) and iphone wifi is also working fine. it sees the signal and different networks. , it is also very very slow in opening skype (after that, it is working ok) if I connect via ethernet cable to the same router, everything works perfectly and with the correct speed.could it be a damaged airport card? a software problem/corruption? logic board? (I hope not, the computer is out of apple care now....)
2) after a certain time (more than hours) of use, the trackpad is behaving strangly, increase sensitivity to touch, unwanted selection of folders, files and text or images in web pages when i move the cursor, the cursor jumping all over the places while writing, ecc I have the impression it starts doing that when I use heavily the CPU ( and the temperature goes up). Is this again a problem of the mother/logic board?
I had recently serviced it since it was not booting properly, but except some permissions repaired, they did noit find anything wrong in the hard drive (which I have now substituted with a SSD) or other hardware.
thanks in advance for any help/suggestions
alessandra

I think I solved the wifi connection problem, just by switching off completely the router! sounds trivial, but in this case it worked!!!
the funny behaviour of the trackpad/cursor still persists. any suggestion???
thanks again

Macbook pro running 6.8 has wifi cutting out and extremely slow

My macbook Pro recently started having issues where the Airport says the wifi signal is full, yet is extremely slow(.5mbps compared to 30 that i normally get.)
It also cuts out but says it is still connected, but chrome, safari, itunes all cannot connect even to google.
So far I have tried,
Deleteing the playlist items in system configuration
restarting the router manually and from the router control panel
shutting off my airport card and turning it back on
set a new location in network preferences
setting DNS to Google DNS and openDNS
setting IPv4 settings to manual
checking the router channel
restarting my computer
setting the network utility to constantly ping
checked the preferences on the netgear router site
turning bluetooth on and off
setting and unsetting a firewall
using network diagnostics
the only thing that works is to turn airport off, then on again and reconnect. even then, I can only get a few page views, sometimes only one, before it stops loading anything. my wifi connection used to be amazing, then one day it just started doing this. I get very slow speeds when I can connect, and downloads are extremely slow.

I also finger McAffee as the culprit, it's not necessary on Mac's as of 10.6.8+ Apple installed their own anti-OS X malware detector and it checks for updates like every 26 hours or so.
If you need to clean the Windows malware off their files, the free ClamXav does the job nicely and doesn't bugger up the machine as it's run as you need it.
For your other slowdown issues, I suggest you look through these tips of mine, my Snow Leopard is incredibly fast.
Why is my computer slow?
Diagnosing network issues
Tune up your Mac here
For Snow Leopard Speed Freaks
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

Apple TV wifi connexion gets extremely slow in 1 day. Reboot solves it...

Hi,
I have an ATV 3. The setup is simple, no jailbreak. Connected on an impressively fast wifi N connexion. Logged in my iTunes account, with Home Sharing with my MacMini, always on. ATV set up to never go into sleep mode. Airfoil on my MacMini and streaming the sound of ATV into Airfoil by Airplay (tried to deactivate it and my issue described below is still here).
Now, when I start my ATV and stream an iTunes TV show I bought (not through HomeSharing), it's a perfect experience, the playback starts in 1 sec, 1080p, wow.
The next day, I do the same thing, start streaming a show on iTunes (not through HomeSharing), and this time, it says the show will start in 33 minutes!!! I reboot my ATV and it's blazing fast again.
I've had this observation maybe 10 times, tried different things, including the 'never go to sleep ATV setting' thing...
ATV is great but if I have to unplug and replug it every time, it's a real pain!
Any idea? Someone already experienced such things? (fast connexion at first, then extremely slow the next day until unplug/replug solves it)
Thanks a lot
Cédric

Hi,
I have an ATV 3. The setup is simple, no jailbreak. Connected on an impressively fast wifi N connexion. Logged in my iTunes account, with Home Sharing with my MacMini, always on. ATV set up to never go into sleep mode. Airfoil on my MacMini and streaming the sound of ATV into Airfoil by Airplay (tried to deactivate it and my issue described below is still here).
Now, when I start my ATV and stream an iTunes TV show I bought (not through HomeSharing), it's a perfect experience, the playback starts in 1 sec, 1080p, wow.
The next day, I do the same thing, start streaming a show on iTunes (not through HomeSharing), and this time, it says the show will start in 33 minutes!!! I reboot my ATV and it's blazing fast again.
I've had this observation maybe 10 times, tried different things, including the 'never go to sleep ATV setting' thing...
ATV is great but if I have to unplug and replug it every time, it's a real pain!
Any idea? Someone already experienced such things? (fast connexion at first, then extremely slow the next day until unplug/replug solves it)
Thanks a lot
Cédric

Airport Express and USB Hard drive and extremely slow performance

HI Guys,
I seem to having a lot of trouble with an Airport express and a Lacie 1TB drive. While I have solved several problems by updating firmware and enabling journalling on the Lacie, I am still having problems with extremely slow performance with my macbook, particularly using itunes and Firefox.
Any ideas and any further information needed?
Regards
BJDprivate

BjdPrivate wrote:
HI,
I formatted it using the Lacie setup program for Mac and later enabled it for journalling using Disk utility. This seemed to solve a lot of the recognition problems I was having, however the I-Tunes and firefox performance is still atrocious. If I do Need to completely reformat it using Disk Utility, will I lose my files on the disk now?
not if you move them to a temporary location before you start.
yes, you are better of formatting the drive with DU.

TS1963 Migration via Wifi + Ethernet is extremely slow

Why the migration of information from my old PowerBook to the new one via Wifi + Ethernet is so slow? 60 hours!!!!
The migration assistant didn't give me any other choice like FireWire.

Welcome to Apple Support Communities
Wi-Fi and Ethernet are very slow, so I think it's normal that time if you have to transfer a lot of data.
Migration Assistant can't transfer through FireWire because the MacBook Pro with Retina display hasn't got FireWire, and if your PowerBook has got FireWire, it's probably FireWire 400, making everything much more difficult. I recommend you to get an external drive and transfer your files manually

Two problems, disconnecting and extremely slow internet at a certain time of the day.

My first problem started to occur since the beginning of this year, after I've upgraded from 1MB/s to 3MB/s. EVERYDAY at 2:39 PM EST or sometime around there, my internet would disconnect (most common at 2:39). It would take some 5-20 minutes to reconnect by itself. I go to 192.168.1.1 and go to broadband connection and press disconnect, then reconnect to get myself back on asap. It would take me a few tries disconnecting and connecting to get the internet back up. I probably do disconnect during other times of the day, such as night time but I don't notice it as much because I am not using the computer at the time.
My second problem is slow download speed at night. As I said, I have a 3000/667 kb/s connection. My internet connection speed is normal during the day time .. but when I ran a speed test during night time, I get around 333 kb/s download and 600 kb/s upload. So, my download speed drops significantly at night and my upload speed is normal.
I am using a D90-327W15-06 modem and I am not using a wireless connection.
Margin (dB) 14.5 11.0
Line Attenuation (dB) 40.0 23.0
Transmit Power (dBm) 18.4 11.9
Don't know if that information helps ..
P.S Sorry if this is a lot to read, I wanted it to be as much detailed as possible.

#1 Is wireless in the router enabled?
#2 If so, to question number one above: What level of wireless security is it set to ( WEP / WPA )?
#3 Did you try connecting your modem to the NID?
If not, please do that - and recheck those stats.
If you do not what a NID is, see http://www.dslreports.com/faq/1317
If you are the original poster (OP) and your issue is solved, please remember to click the "Solution?" button so that others can more easily find it. If anyone has been helpful to you, please show your appreciation by clicking the "Kudos" button.

After 2.0 Upgrade original iPhone WiFi unstable and not connecting

I upgraded my original iPhone (8GB) to OS 2.0. I had some issues getting it upgraded with "problems accessing the iTunes Store" but once thoese resolved seemed ok. Even bought and synced Super Monkeyball.
I now notice that in my home where I have two airports (old G Extreme and a G Express) neither will connect to the iPhone for more than a few seconds and for the most part the phone doesn't see them.
Anyone have this issue and any suggestions for resolving?

Hi Menk - do me a favor will you? Go into Settings > Mail, Contacts, Calendars > and then scroll down to "Calendars". Question: How many sub-functions do you see?
After I did the upgrade, I have two sub-functions. I look at the same path on a 3G iPhone, and see they have three. The 3rd sub-function is "Calendar Type". Do you have that on your upgraded iPhone?
Also, when you are in the Calendar apps, on the top left hand corner. do you have a "Calendar" button? I don't have one after my upgrade but I see that 3G does.
Look forward to hear from you ...

Premiere Pro CC continuous crash and extremely slow renders on a new Mac Pro.

Hello,
recently we changed our editing machines with the new Mac Pro with this configuration:
- CPU 3,5 GHz 6 core Intel Xeon E5
- 32 GB RAM
- 2x AMD FirePro D700 6 GB
we work on a server connected to the Mac Pro in Dual Ethernet configuration.
The rendering of a sequence at 1920x1080 with 3 video tracks (video footage converted at ProRes 422 LT, a title on a linked After Effects Comp and a PSD graphic overlay of a small logo) of the length of about 3 minutes it takes about 4 hour... when it doesn't crash.
When it crash, usually when i simply scroll the timeline, i receive an error message very long (if you want I can send you a rtf file about it, it's too long to paste it here).
These are my system information:
- Premiere Pro CC 8.2.0 (65)
- I've installed every updates available at this time
- OS X Yosemite 10.10.2
Thank you very much in advance, and sorry for my bad english.

Thanks Andrea for your assistance in reporting that additional information. You have come across an intermittent bug which has been reported by other users with no reliable repro steps for us to follow in house. So it appears to be mainly system specific, but we're not even sure which sorts of systems demonstrate it yet.
One other thing to try is clearing your media cache files (from preferences > media panel). In the meantime,e the best thing to do is make sure you submit those crash logs to adobe whenever you get them. This helps us identify common thread among various users who may be experiencing the same problem. Also, if you have time, please file a bug report describing the steps that caused the issue in your case: http://adobe.ly/ReportBug
Please be as specific as possible when describing your steps. Without a repeatable case, a bug like this is very, very difficult to fix. Thanks again for your support.
To work around the sloe render for AE comp problem, please try right clicking on the comp in the timeline and then choose the "Render and Replace" command to transcode it out to a more easily handled format. This should help a lot with your performance slowness, and you will still have the ability to restore the original comp files if needed.

Poor Reception and Extremely Slow Internet

I switched from the G1 to the Blackberry 8900 and I like the 8900 more. The only problem is that the reception on the 8900 seems to a lot be worse than the G1's reception and the internet is really slow. When I used the G1, I didn't even use 3g because I wanted to conserve battery life. Even on edge, the 3g was about 10x faster than the Blackberry's internet. It's really unfortunate because I love the blackberry's pointer and the scolling on it. It makes links so much easier to click. Does anyone have the same problem?

yes im having the same problem and funny thing is i switched over from the g1 as well and i never was in the 3g area ...but im getting tons of dropped calls now and the internet is alot slower with the blackberry

10.4.5 update causing CPU spikes and extreme slowness

I have a 20" iMac G5 (the model right before the one with the built-in iSight came out). I just updated to 10.4.5 and I'm now seeing spikes in the kernel_task process that completely overtake my system. Everything else gets a spinning wheel when this happens and even iTunes music stops playing. It happens every few seconds for a split second and then it stops. It makes my system almost unusable. Does anybody know how I can fix this? Is there any way I can revert to 10.4.4?
Thanks,
Carl Youngblood

Here is what I did to fix the problem:
1) Bought a 300GB external hard drive (w/ firewire interface so that my imac could boot from it).
2) Downloaded SuperDuper.
3) Backed up everything to my external hard drive.
4) Reinstalled OS X on top of my current installation, preserving all user data.
5) After I got my system set back up the way it was before but BEFORE INSTALLING ANY UPDATES, I ran SuperDuper again to back up everything in case something got hosed after updating.
6) Then I installed all the updates again. This time everything worked fine and I did not experience the problem again.
Not the easiest solution but I feel a lot safer now that I have a backup of my data.

Wifi unstable and extremely slow on my Aspire V Nitro VN7-591G-7.

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