MacBook pro a1278 mid 2012 is connected to wifi but no internet

hello guys, i have a MacBook pro A1278 with OS X mavericks, my issue is that The computer is always connected to my wor connection, but out of the blue the internet goes off, like i tried to download a file, 100 mb, it was working property for like 5 minutes and then the download stopped and all the internet connection failed, although the MacBook was still connected to the wifi and the wifi icon was at it's maximum, then after a few minutes it was working again for like another 5 minutes and then it stopped again, i also have a windows pc and it was working property all the time.
is there a way that u can fix this?
thanks

Even though the iPod shows as been connected, it might not have actually received a valid IP address via DHCP from your Wi-Fi access point or router. Head to Settings -> Wi-Fi and tap the > next to the network you are connected. If 169.xxx.xxx.xxx is listed for an IP Address, then your iPod did not receive a valid IP address. To correct this you can reboot your router by unplugging it from power for about 30 seconds.
It wouldn't hurt to also reset your iPod. To do this, press and hold both the Sleep/Wake and Home buttons together long enough for the Apple logo to appear.
Perhaps this article would be worth at as there may be a configuration on your mother's router/modem that is preventing access. This will require you to have admin access to the router/modem's configuration interface that is usually accessible via a web browser.
iOS: Recommended settings for Wi-Fi routers and access points
B-rock

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☞ Paste into the window of another application.
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com.microsoft.office.licensing.helper com.oracle.java.Helper-Tool com.oracle.java.JavaUpdateHelper com.oracle.java.JavaUpdateHelper org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.privileged_startx org.macosforge.xquartz.startx ' ' 879294308 4071182229 461455494 3627668074 1083382502 1274181950 1855907737 2758863019 1848501757 464843899 3694147963 1233118628 2456546649 2806998573 2778718105 2636415542 842973933 2051385900 3301885676 891055588 998894468 695903914 1443423563 4136085286 523110921 2883943871 3873345487 ' 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=(' 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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" ]];};A'$((7+i))'() { v=` eval sudo "${c1[$1]} ${c2[$2]}"|'${c1[30+i]}' "${s[$3]}" `;[[ "$v" ]];};';done;A9(){ 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 $1;};for i in 1 2 7 8;do for j in 0 2 3;do eval D$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;B1&&D73 19 53 67 55;D22 2 12 9 11;D12 3 13 10 12;D23 4 19 44 13;D23 5 54 12 56;D23 5 14 12 14;D22 6 36 13 15;D22 20 52 66 54;D22 7 37 14 16;D23 8 15 38 17;D22 9 16 16 18;B1&&{ D82 35 49 61 51;D82 11 17 17 20;for i in 0 1;do D82 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&&{ A8 18 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 26 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&&{ D73 21 0 32 19;D73 10 42 32 40;D82 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 21 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&&D83 35 45 55 46;D23 32 31 43 38;D12 36 47 32 48;D13 10 42 32 41;D13 37 2 48 43;D13 4 5 32 1;D13 4 3 60 5;D12 21 48 49 49;B3 4 22 57;A1 21 46 56;B7 22;B3 0 0 58;C3 47;D22 4 4 50 0;D12 4 51 32 53;D23 22 9 37 7;A9;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.

Macbook Pro Retina mid 2012 low fps in bootcamp

Hello,
My English is not so good, so sorry if it's not correct, but I hope anyone could help me.
I have a Macbook Pro Retina mid 2012, 2,3 GHz Intel Core i7, 8 GB ram, 250 GB SSD.
My problem is when I go to bootcamp for gaming I get realy low fps. The most games start at 30 fps, but then they drop immediately to 8/9 fps and a second later back to 30 fps.
It's like a car, when you drive to hard you have to slow down, but then you drive to slow so you need to go faster. He speed up and a second or 2 later he kicks on the brakes and a moment later he speed up again and kicks again on the brakes.
Even with al the game setting on realy low and the lowest resolution. And that al the time in every game. My bootcamp is Windows 8 but in Windows 7 did I have the same problem. I did already a SMC reset and Pram reset and 5 clean installs. But nothing works. I installed al the updates in OS X en in Windows. There al alrealy some forums about this problem, but by them was a SMC reset enough. Maybe something is wrong with my Nvidia grapihc card. The problems starts everytime when the Nvidia card need to do this work.
it's quite an annoying problem, it's not a cheap laptop, but my old laptop ( 2 years old ) are the gaming performs better compared to this one. I think the problems start after this SMC update http://support.apple.com/kb/DL1559?viewlocale=en_US but I'm not quite sure.
Are there more people with this problem, please let me know. And maybe how you solve it.
I hope realy if any one could help me.
If you know a anser, please give it in a comment
Thanks,
Gerwin Tiemens
<Email Edited by Host>

Hello gerwintiemens,
I recommend resetting your SMC and your PRAM. Perhaps even a safeboot as well.
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
About NVRAM and PRAM
http://support.apple.com/kb/ht1379
Mac OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/ht1564
All the very best,
Sterling

MacBook Pro (Retina, Mid 2012) - Boot Camp/Win 7 - Num Lock Problem

Hey,
I have a client who has a MacBook Pro (Retina, Mid 2012) who is experiencing a problem when booted into Windows 7 via Boot Camp in that he cannot type certain character like # (hash character by keystroke alt + 3) without Windows 7 error bleeping at him. He needs the # character as part of his password for logging into webmail.
The Boot Camp setup has the latest Boot Camp drivers installed (this was a fresh Boot Camp setup/install today) and every other part of the hardware works I suspect that this problem is not a key mapping problem but more something to do with Windows registering Num Lock as being active.
If the problem is that Num Lock is enabled then what is the keystroke to disable Num Lock? I thought it was fn + 6 but did this change since the Unibody MacBooks?
I understand that there are ways of resurrecting number pad fuctionality as decribed in the MacWorld article (see link below) but this is a Mac OS X System Preference and as such would not operate when booted into Windows via Boot Camp.
http://www.macworld.com/article/1142609/ressurect_numberpad.html
Any advice will be greatly appreciated.

You have Graphics card problem.
Take it in Hardware problem:
Genius reservation http://www.apple.com/retail/geniusbar/
on-line https://getsupport.apple.com/GetproductgroupList.action
check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do
see if this applies http://appleinsider.com/articles/12/11/13/some-15-retina-macbook-pro-users-compl ain-of-graphics-issues-after-efi-update

MacBook Pro 15" Mid 2012 says only supports Windows 7

Hi there,
I have Windows 8 already running on my MacBook Pro 15" Mid 2012 and now I am trying to install the latest drivers. But when I download the drivers via the Boot Camp Assistant it claims my MacBook only supports Windows 7.
I did the manual download on the Windows side of life, but it fails to install, shortly after hitting setup. I guess, it checks the modell and fails.
Also, maybe or maybe not, unrelated in the MacBook's about me it claims to be a 13", where as in the system report it shows the correct information.
Any idea would be appreciated...
Thanks,
Thomas

https://discussions.apple.com/message/21540547#21540547
projectRelentless has some work arounds that may help here specifically:
If you want, try and click setup in this latest BootCamp support set, and you will get another sad error claiming x64 is not supported, something awful to that nature. Awww man, this far, only to get let down. Nope. We are going to fix that. And this is where ErikVanD's post pointed me to what we do next.
It was said to navigate in the BootCamp 5.0.5033 folder to something of the effect of BootCamp/Drivers/Apple and run the MSI file "BootCamp" (MSI file will say Windows Installer in its description, and not necessarily MSI for anyone not too savy with Windows) **note - NOT .bootcamp (notice the period in the front) and it should work and install the new Windows 8 support for your MBP...but in my case it didn't, which is why im posting how i fixed this. Your setup may somehow be different, but mine gave me an error say it "needs elevated permissions to run, use setup.exe instead. We tried that remember! And it gave us the x64 not supported error. Oh man! Blabbing aside, this file needs to be ran as an administrator, which yeah your the only user, but Windows is funny like that. Normally youd just right click, and select run as administrator, but out the box, that option isnt there when you right click, only install, repair, open with etc. Here's the next trick, you need to add a registry file to enable running as an administrator, dont be afraid, this is an old trick, and really easy.
Open notepad in Windows, and create a new doc, call it Add_MSI_run_as_administrator.reg
Paste this following code into the new doc
Windows Registry Editor Version 5.00
HKEY_CLASSES_ROOT\Msi.Package\Shell\runas] "HasLUAShield"="" [HKEY_CLASSES_ROOT\Msi.Package\shell\runas\Command] @=hex(2):22,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,\ 00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,6d,00,\ 73,00,69,00,65,00,78,00,65,00,63,00,2e,00,65,00,78,00,65,00,22,00,20,00,2f,\ 00,69,00,20,00,22,00,25,00,31,00,22,00,20,00,25,00,2a,00,00,00
Or download the file already made from my company server at http://www.theprojectdev.com/public/pub.html **i put this there as a courtesy to help others like me, its just a complete reg file, so either create your own through copy and pasting above or download it. Either way, put it on your desktop.
Now double click the new registry file, and allow/ok it to do its thing.
Once done, you can discard the file from your desktop, or keep, your choice.
Guess What!? Now we can do the impossible! Lets revisit that solution from before by going to the newest BootCamp 5.0.5033, and navigate to BootCamp/drivers/Apple and select that tricky BootCamp MSI file that wouldnt allow us to run, this time RIGHT CLICK it. Because of our new registry entry we placed, we now have an option to "Run as Administrator" Click that option.
WooHoo! We have done what coudnt be done, BootCamp will now walk you through the installer, and add all the great support for Windows 8
Boot Camp Support Software 5.0.5033
http://support.apple.com/downloads/DL1638/en_US/BootCamp5.0.5033.zip

Macbook Pro 13" Mid 2012 OSX 10.10.3 with Windows 8.1 64bit no sound ?

I Install windows 8.1 64 Bit in my Macbook pro 13" Mid 2012 , I don't get any sound in windows, try every thing nothing work.
I had Yosemite 10.10.2 with windows 8 all was good, since I update to OS X 10.10.3 I can't login back to my windows it's crash,
so I decide to install windows again but this time windows 8.1, and now no sound in windows ???? Any help ? try all Bootcamp 5.1 5621 , Manually install drivers etc etc ????
plz any help
Macbook Pro 13" Mid 2012
Yosemite 10.10.3
BootCamp 5.1 , 5621
Windows 8.1 64 bit
No sound in windows

Do you see any sound devices in Device Manager?
The following screen shot is from the same model you have running OS X 10.10.3 and W8.1. If you used EFI boot to force install W8.1, it will not work.
You can download drivers from System requirements to install Windows on your Mac via Boot Camp - Apple Support for your specific Mac and Boot Camp: Install or repair Boot Camp drivers and test.

Why does my MacBook Pro 13" mid 2012 version run quite slowly?

I used to have a Windows PC, which ran VERY VERY VERY slowly. I heard that Macs did not get viruses and ran very quickly, so I bought a brand new MacBook Pro 13" mid 2012 version (entry level). At first it was running quite smoothly, but after some time it became slower, with boot ups taking about 2-3 minutes, instead of the 30 seconds boot up time I kept on hearing on Internet reviews. Is the RAM (4GB) insufficient? Or is 30 seconds just exaggerated? Launching apps can take quite a while, especially graphics intensive apps such as iMovie. Opening folders in my thumb drive can be quite a pain too, seeing as there is a lot of visible lag in the opening of files and folders.

Boot times of 2-3 minutes are a little slow, my 15" doesn't do 30 seconds but faster than 2-3 minutes. From your comments about how you are using the MBP, the entry level model may not have been the best choice...the 13" models have only one graphic processor, the 15" models have two. The normal-usage Intell 4000 and a discrete AMD that kicks in with graphic intensive software. If you are going to do a lot of video and games, the discrete processor will be a big help. Also, 4 GB ram is often more than adequate, but some software really benefits from more ram.
You can check the ram usage, and cpu usage, by going to Launchpad, Utilities, Activity Monitor. See what the memory usage is with your software open and active...is the ram being used fully, are there a lot of page ins and page outs? That means it is using the mass storage as it runs out of memory space. If that is the case, increasing the ram to 8 GB will help.
The Activity Monitor can also show you the load on the cpu so that gives an idea of how much you are pushing the system.

Macbook pro 15 mid 2012 with os x 10.8.4 taking long time to boot up

i am using macbook pro 15 mid 2012
2.6GHz intel core i7
8GB RAM
700GB hard disk
my macbook is taking much more time to start and get it ready its taking more than 1min 30sec
after system starded its hard to open any application(safari) for starting time some times while using safari the cursor is in not responding i mean doing some process its showing colour wheel rotating
please tell me how to speed up my macbook pro

How much free disk space is available ??
Click the Apple menu icon top left in your screen. From the drop down menu click About this Mac > More Info > System Report then select Storage on the left under Hardware.
You'll see Available and Capacity. Make sure there's at least 15% free disk space.
If there's sufficient free disk space, check for login items. Open System Preferences > Users & Groups > Login Items
Delete any items there then restart your Mac to test.
some times while using safari the cursor is in not responding i mean doing some process its showing colour wheel rotating
Try troubleshooting plugins and extensions...
From your Safari menu bar click Safari > Preferences then select the Security tab.
Deselect: Allow all other plug-ins. Quit and relaunch Safari to test.
If that made a difference, instructions for troubleshooting plugins here.
If it's not a plug-in issue, select the Extensions tab. If there are any extensions installed, turn that OFF, quit and relaunch Safari to test. If that made a difference, uninstall one at a time, quit and relaunch Safari to test.

Where can i buy original memory for my macbook pro 13inc mid 2012 and how much is this ?

Where can i buy original memory for my macbook pro 13inc mid 2012 and how much is this ?

"Memory sold by the Apple Online Store is guaranteed to be compatible with your Macintosh."
http://store.apple.com/us/mac/mac-accessories/memory
Other than Apple there are only two vendors with which I have personal experience and can recommend: Crucial and OWC. People have reported problems with many other brands, yet Crucial and OWC's prices are as good as any you are likely to find.
Go to Crucial and download the little app that examines your system and recommends RAM upgrade options.
Their prices are good but don't have to buy memory from them - determine what you need and buy it from Crucial or OWC / MacSales. You'd be paying Apple a lot more than either one of them, and you don't have to.

Handoff dosen't work between Macbook pro Retina Mid 2012 & iPhone 6

My Macbook Pro Retina Mid 2012 dosen't work in handoff with my iPhone 6 or my new iMac late 2012,
Handoff option in the system preferences is allowed and i log in with the same iCloud in all my devices ,
and its only work with the phone calls and messages but not for the safari or iWork's apps.
Help plz!

Your MBP is too old to support a 4k display:
http://support.apple.com/kb/ht6008
Ciao.

My MacBook Pro Retina, Mid 2012 at Mavericks 10.9.3 is freezing up several times a week

My MacBook Pro Retina, Mid 2012 at Mavericks 10.9.3 is freezing up several times a week -- often happens, but not limited to, using the Application Window key.
Processor 2.6 GHz Intel Core i7
Memory 16 GB 1600 MHz DDR3
Graphics Intel HD Graphics 4000
Software OS X 10.9.3 (13D65)
Filesystem      Size   Used Avail Capacity iused    ifree %iused Mounted on
/dev/disk0s2   465Gi 328Gi 137Gi    71% 86029019 35899210   71%   /
devfs          182Ki 182Ki    0Bi   100%      628        0 100%   /dev
map -hosts       0Bi    0Bi    0Bi   100%        0        0 100%   /net
map auto_home    0Bi    0Bi    0Bi   100%        0        0 100%   /home

You have too much junk installed…
The 'easy' way - reinstall
I think you will be quickest backing up the HD to an external disk (check it still boots!). Erase the internal HD, reinstall 10.9, migrate your USER DATA ONLY back to 10.9, reinstall the apps you use, then delete the old login items & user launchd jobs that migrated. You should have a stable system at the end of it.
The hard way - 'cleaning up'
Firstly search these forums for opinions on running Sophos's AV - it adds extra work to your system & many have had issues with it on 10.9. At the very least ensure it is the latest release & 10.9 supported. Sophos is running 7 system level background jobs and 2 kernel extensions! These all can modify how the system runs.
At the end of cleanup you may have a stable system - it really depends on how much effort you put into clearing out all the system level jobs that are not compatible with 10.9. The developers don't make it easy to remove software too, so you may have a lot of searching to do (for instructions & uninstallers).
All of this below needs looking at !
Kernel Extensions:
[loaded] at.obdev.nke.LittleSnitch (4092 - SDK 10.8) Support
[loaded] com.Cycling74.driver.Soundflower (1.6.6 - SDK 10.6) Support
[loaded] com.bresink.driver.BRESINKx86Monitoring (9.0) Support
[not loaded] com.novatelwireless.driver.3G (3.0.2) Support
[not loaded] com.novatelwireless.driver.3GData (3.0.2) Support
[not loaded] com.novatelwireless.driver.DisableAutoInstall (2.0.6) Support
[not loaded] com.ovolab.driver.phlink (1.0) Support
[not loaded] com.roxio.BluRaySupport (1.1.6) Support
[not loaded] com.roxio.TDIXController (2.0) Support
[not loaded] com.sierrawireless.driver.SierraSupport (1.4.11) Support
[not loaded] com.sierrawireless.driver.SierraSwitch (1.2.2) Support
[not loaded] com.sierrawireless.driver.SierraSwitchKicker (1.0.0) Support
[not loaded] com.smithmicro.driver.SMSIWirelessCDC (3.2.6) Support
[not loaded] com.smithmicro.driver.SMSIWirelessModem (3.2.6) Support
[not loaded] com.smithmicro.driver.SMSIWirelessSerial (3.2.6) Support
[loaded] com.sophos.kext.sav (9.0.61 - SDK 10.7) Support
[loaded] com.sophos.nke.swi (9.0.53 - SDK 10.8) Support
Startup Items:
Jaksta: Path: /Library/StartupItems/Jaksta
Launch Daemons:
[running] at.obdev.littlesnitchd.plist Support
[loaded] com.adobe.fpsaud.plist Support
[invalid] com.oracle.java.Helper-Tool.plist
[loaded] com.oracle.java.JavaUpdateHelper.plist Support
[running] com.sophos.autoupdate.plist Support
[running] com.sophos.configuration.plist Support
[running] com.sophos.intercheck.plist Support
[running] com.sophos.notification.plist Support
[running] com.sophos.scan.plist Support
[running] com.sophos.sxld.plist Support
[running] com.sophos.webd.plist Support
[not loaded] org.freedesktop.dbus-system.plist Support
[running] org.glimmerblocker.proxy.plist Support
[loaded] org.macosforge.xquartz.privileged_startx.plist Support
Launch Agents:
[running] at.obdev.LittleSnitchUIAgent.plist Support
[invalid] com.oracle.java.Java-Updater.plist
[running] com.sophos.uiserver.plist Support
[loaded] org.freedesktop.dbus-session.plist Support
[loaded] org.glimmerblocker.updater.plist Support
[running] org.macosforge.xquartz.startx.plist Support
User Launch Agents:
[failed] com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist
[failed] com.BlueStacks.AppPlayer.LogRotator.plist Support
[loaded] com.BlueStacks.AppPlayer.Service.plist Support
[failed] com.BlueStacks.AppPlayer.UninstallAgent.plist Support
[failed] com.BlueStacks.AppPlayer.UpdaterAgent.plist
Uninstall Jacksta, the 'startup items' have been deprecated since 10.4 - Apple told developers to stop using them years ago.
Update all the other apps listed or find uninstallers/ removal instructions to correctly remove the software.
Are all those sierrawireless and novatelwireless drivers used or needed anymore?
Can you uninstall BlueStacks? It's failing to run jobs inside your user account, get rid of things that don't work (or update them & check they do work).
Java's updater is failing to run - is Java up to date? Do you need Java installed? It isn't installed on Mac OS anymore because of it's lousy security record. Update or remove if you don't need it.
You could try removing Sophos & find that the Mac runs OK - but eventually having all the old kernel extensions & background jobs around will eventually cause something else to break.

MacBook pro a1278 mid 2012 is connected to wifi but no internet

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