Wireless connection lost upon wake from sleep

I recently joined the 21st century and purchased broadband internet for my home. I am connecting via wireless ethernet using an original Airport card and flying-saucer type base station. All I did was connect the base station to the cable modem with an ethernet cable, plug it in, and restart my eMac. The network showed up right away and I was connected. Unfortunately, after my Mac went to sleep and I woke it up, not only was there not a connection, but there was no sign of the network.
Airport status showed it was still on, but in the spot where the networks show there was nothing. Restarting corrected the problem, but I assume only until it sleeps again. I can change the settings to make it monitor-only sleep, but I would like a more permanent solution.
What might help to fix the problem, and was there something I needed to do besides just turn my machine off and on to set up this network?
Thanks.

If you pose this problem over in the Airport or Tiger networking forums, you'll find you've stumbled into a morass of conflicting reports. There have been a disturbing number of reports of Airport connections lost in Tiger after wake from system sleep, usually not reconnected until after a restart. Some people have some success checking the box to put the Airport icon in the menubar ans using that to turn Airport off, wait a few minutes, and turn it back on, yet others have reported that only works part of the time and others report it doesn't work at all. Some have reported improvement after downloading and running the full OS X Update Combo 10.4.10 (PPC) on top of an OS updated via Software Update. And the large majority of Airport users never report any problems at all using Tiger. It really sounds like there's no one cause and no one fix.
There is a workaround: don't let the Mac go into system sleep. Use the Energy Saver system preference to set system sleep to Never, uncheck the 'put hard drives to sleep when possible' box, and set the display-only sleep to say 20 minutes. If the eMac is in a bedroom and the sleepers are sensitive to fan noise or power LED lights, that will be a problem, but likely less aggravating than losing your broadband connection.

Similar Messages

Connection Lost After Wake From Sleep

I am using a Macbook Pro and Linksys WRT150N W/L router. Every time my MBP wakes from sleep, I lose my internet connection. My menu bar still shows that I'm connected to the network, but I lose all connectivity. I cannot connect to internet or my router settings unless I do a complete restart. Network preferences shows connected to network but no connection to my router IP address under TCP/IP tab in the advanced settings. I also have a drop out of signal a few times an hour. My iMac DV does not experience the drop outs or connection loss at anytime. I have reset my router numerous times and used default factory settings all with the same results. Does anyone have an idea what the problem may be? Thanks.

I was always experiencing drop outs as far as what my signal was showing in my menu bar. It would drop out even if I was on top of my router. I had upgraded to 10.4.11 and the day after I did that, the problems started. I thought I might as well upgrade to 10.5 to see if that might help it. I think the 10.4.11 had done something to my W/L card and upgrading to 10.5 wouldn't have helped it unless I upgraded from 10.4.10 to 10.5, skipping 10.4.11 all together. I'm gonna bring my router and MBP into the genius bar and see what they can tell me about. Thanks for replying. I'm glad and sad to hear that I'm not the only one experiencing these symptoms.

Wireless connection lost after awakened from sleep.

I have the 2 month old 17" 2.16Ghz Macbook Pro Core Duo. Whenever I put the unit to sleep the wireless connection is lost when awakened. The Airport preferences pane shows a full strength signal and a base station ID but I cannot load a webpage, get or send emails, and ftp connections are broken. If I plug in an ethernet cable All is well again.
The ony way to restore the wireless connection is to either restart OR logout and log back in.
Any suggestions?
THANKS

Do this.
Open network preference panel
Select Airport on Show: drop-down menu
Select Airport tab
Select Peferred networks as the Join by default: item
Delete your network
Close preference panel
Reopen Network panel
Return to Join by default: and add your network
Press Apply now.
That should do it

Server connection lost after "wake-from-sleep"

I've got a network attached storage (NAS) device which I use as a location for backing up information from my hard drive. It's a windows based server so I use smb://servername to connect. I've got things set so that my Mac will connect when I log in but I've noticed that the computer will lose connection with the server after waking-from-sleep. Has any one else run into this? Any thoughts?
17" G4 iMac Mac OS X (10.3.9)

hi there--
i would write down all your network settings if you don't know them, and then trash the /library/preferences/systemconfiguration folder. (that's at the root or harddrive level). then restart the computer and re-enter your network settings. this solves a lot of problems with connections cutting out after sleep. [ 8 ) ]

AFP connection interrupted upon wake from sleep

This only happens on my MacBook Pro. MBP. I mount my main Server volume from my Mac OS X Leopard Server via AFP. At night I put my MBP to sleep. In the morning when I wake up I get the message that the "Server connection has interrupted."
No matter what, I either have to click Disconnect or if I don't if will eventually disconnect on it's own and then the message will go away. I can immediately mount the server again after the disconnect message is cleared. I can NOT interact with the volume while the message is on the screen. I must disconnect before I can reconnect to the server.
This doesn't happen on any of my other Macs logging in with the SAME ACCOUNT, so I don't think it's a server issue. Any clues?
I also checked to make sure that the Server was set to disconnect idle users after 75 hours and again I can log on to the same account from a different Mac, put it to sleep, wake it and still be connected (reconnected) to the server no problem.

The serveradmin tool is a Mac OS X Server command available on Mac OS X Server.
For details on the command and command syntax:
$ man serveradmin
This man page (and the command) are available on Mac OS X Server. This tool is not part of Mac OS X client, nor is this tool apparently installed with the installation of the Server Tools package on a Mac OS X client client box.
You can access the serveradmin command from any platform (Mac OS X, linux, Windows, whatever) that can telnet or ssh into the server box; to initiate a command-level session on the server. And you can access the serveradmin tool through that path.
Or (usually easier) you can use the Server Tools that you've installed, and connect into the server that way. The Server Tools (which are available via the Mac OS X client GUI, and installed with the Server Tools package you have loaded on this system) are located in the /Applications/Server directory. Launch Server Admin, select (or add) the target server, authenticate yourself with credentials appropriate for the server, select the AFP file services, and select (or verify) the setting and behavior for idle connections.

Network connection lost after waking from sleep

iMac (27" late 2013) running Yosemite 10.10.
Ethernet connection direct to the computer from the FIOS router.
Upon waking from sleep, the computer is not connected to the internet.
After about 20 seconds it finally reconnects.
Under Mavericks it never lost the connection by sleeping - was instantly connected upon wake up.
I tried creating a new location under the network system preferences and ordered it so that Ethernet was the first to connect.
That didn't change anything.
Any suggestions how to fix this? I don't want to have to wait every time I wake up the computer.
Really bugging me.

Update on my situation.
I have tried many things to get this fixed including:
SMC reset (for an iMac this means unplugging it, waiting, and plugging back in)
PRAM reset
deleted the "system configuration" folder
Still no luck. Upon freshly booting the machine, it gets to the desktop and opens up mail for me, but the internet is not connected right away. Still takes an additional 15seconds or so after Mail boots up to get a connection. Then everything works fine. If the computer sleeps, it doesn't have internet upon waking, but again will establish a connection (self assign an IP address) after about 15-20 seconds.
So while not crippling, these 15-20 second waits are very annoying.
Interestingly, this is ONLY with a wired Ethernet connection. If I use WiFi everything connects right away. But my WiFi is slower than the wired connection and I prefer to use the wired connection.
Any further suggestions are welcome.
Chris

Airport issue upon wake from sleep

When my mac pro wakes from sleep it connects to my preffered wireless network but it has some serious issues and doesn't work. When it restarts the airport icon shows connected, but mysteriously shows a weak signal and when I try to do anything that needs to talk to the network it fails. The only way to fix the issue is turn airport off then on again and hey presto I'm back on a full signal and can surf n stuff.
I'm using a 1st gen Airport Express N basestation, which works fine as I have 5 other macs in the house (non a mac pro) that don't have the issue.
Looking in my logs i see a few interesting things, it looks like when the system is woken up it sets the country code to X3 and then fails to get a proper link. When I restart airport it sees the network uses GB as the country.
I can't be the only person with this problem.
Feb 18 07:25:44 Big-Mac kernel[0]: en2: 802.11d country code set to 'X3'.
Feb 18 07:25:44 Big-Mac kernel[0]: en2: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64
Feb 18 07:25:44 Big-Mac kernel[0]: Intel8254x -- Link Down -- 00:1d:4f:48:99:d5 -- called by disable() --
Feb 18 07:25:43 Big-Mac configd[14]: rtmsg: error writing to routing socket
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Advertisement Register (04d) = 0xde1
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Link Partner Ability Register (05d) = 0x0
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Advertisement Register (09d) = 0xe00
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Link Partner Ability Register (10d) = 0x0
Feb 18 07:25:44 Big-Mac kernel[0]: -- PHY Specific Status Register (17d) = 0x8000
Feb 18 07:25:44 Big-Mac kernel[0]: Intel8254x -- Link Down -- 00:1d:4f:48:99:d4 -- called by disable() --
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Advertisement Register (04d) = 0xde1
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Link Partner Ability Register (05d) = 0x0
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Advertisement Register (09d) = 0xe00
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Link Partner Ability Register (10d) = 0x0
Feb 18 07:25:44 Big-Mac kernel[0]: -- PHY Specific Status Register (17d) = 0x8040
Feb 17 23:42:12 Big-Mac kernel[0]: System Sleep
Feb 18 07:25:44 Big-Mac kernel[0]: System Wake
Feb 18 07:25:44 Big-Mac kernel[0]: Previous Sleep Cause: 5
Feb 18 07:25:44 Big-Mac kernel[0]: USB caused wake event (EHCI)
Feb 18 07:25:44 Big-Mac kernel[0]: Intel8254x -- Link Down -- 00:1d:4f:48:99:d5 -- called by enableHardware() --
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Advertisement Register (04d) = 0xde1
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Link Partner Ability Register (05d) = 0x0
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Advertisement Register (09d) = 0xe00
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Link Partner Ability Register (10d) = 0x4000
Feb 18 07:25:44 Big-Mac kernel[0]: -- PHY Specific Status Register (17d) = 0x8000
Feb 18 07:25:44 Big-Mac kernel[0]: Intel8254x -- Link Down -- 00:1d:4f:48:99:d4 -- called by enableHardware() --
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Advertisement Register (04d) = 0xde1
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Link Partner Ability Register (05d) = 0x0
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Advertisement Register (09d) = 0xe00
Feb 18 07:25:44 Big-Mac kernel[0]: -- Auto-Negotiation Gigabit Link Partner Ability Register (10d) = 0x4000
Feb 18 07:25:44 Big-Mac kernel[0]: -- PHY Specific Status Register (17d) = 0x8000
Feb 18 07:25:44 Big-Mac kernel[0]: WLCE_COUNTRY_CODECHANGED
Feb 18 07:25:44 Big-Mac /System/Library/CoreServices/backupd[25846]: Backup requested due to disk attach
Feb 18 07:25:44 Big-Mac kernel[0]: en2: 802.11d country code set to 'GB'.
Feb 18 07:25:44 Big-Mac kernel[0]: en2: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 40 48 56 64 104 112 120 128 136 36 44 52 60 100
Feb 18 07:25:44 Big-Mac kernel[0]: jnl: disk8s3: journal start/end pointers reset! (jnl 0xaddec18; s 0x1be000 e 0x1be000)
Feb 18 07:25:47 Big-Mac TextMate[17557]: Error checking for new version: no Internet connection
Feb 18 07:25:47 Big-Mac TextMate[17557]: Will try again in one hour
Feb 18 07:25:49 Big-Mac kernel[0]: AirPort: Link Up on en2

I had the same issues at 10.5.2, however, they went away when I upgraded the OS to 10.5.3. You can now get the 10.5.4 combo upgrade.
Joe

I lose network connection after MacBook Wakes from Sleep

I upgraded to Mountain Lion on my 27" iMac and 15" MacBook Pro. iMac is doing fine. MacBook Pro, however, when it wakes from sleep, seems to have the network untility crash.
So the computer wakes from sleep, and the little status bar radar thing does its little sweep and doesn't just go solid. . If I click on it, it shows my Airport as connected, but after clicking, it freezes. the second to the bottom bar goes solid and the cursor becomes a spinning beachball. If I open system preferences, and select network, it freezes. The only way I can seem to get back on line is to reboot. I have an airport extreme with an older (g) airport express that I use to beam music to my stereo. The MacBook Pro is about 2009 vintage—you can still get to the battery, HD and memory—and the iMac is a bit later. One of the first 27" models, not quad core.
Anyone else having this problem? What more info would you need to help resolve? I'm a novelist and this is killing my productivity.
Thanks,
Steve
http://stephenstark.me

Try the basics first:
Change your router channel number. Most times this works & is all you have to do.
Disconnect & reconnect your modem. unplug it for about 10 seconds. Plug it back in. Do the same for Apple’s routers. Wait for everything to reboot.
System Preferences>Network
Click the Assist Me button.
In the next window that pops up, click the Diagnostic button & do the necessary.
Research Knowledge Base for network problems that pertain to the OS that is currently installed on your computer. See these basic networking KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
Manually provided DNS server addresses are higher priority than DHCP's
http://support.apple.com/kb/HT1714 Solutions for connecting to the Internet, setting up a small network, and troubleshooting
============================
What to do when you can't connect to the Internet
Also, run the Airport Utility app which is located inside the Utilities folder.
=====================
If using a Linksys router, contact LinkSys Customer Support and/or post in their forums.
If using Apple's Airport, please re-post over in one of the AirPort Forums.

Launch application upon wake from sleep

Is there an automator that will launch an application when the computer wakes from sleep? I do video chats w/ my elderly mother via iChat. I can wake her computer from my home using WakeOnLan. However, she sometimes quits iChat so it is not always running. I would like to have some sort of automator set to launch iChat everytime the computer wakes from sleep. I assume if iChat is already running, it would not matter.
If anyone knows how to do this or if it is even possible, please let me know.
Thanks,
Randy

Gary,
Thanks for pointing me in the right direction. I ended up using DisplayWatcher as it also has the ability to run an automator application upon waking from sleep. There were some other apps that were too complicated for me -- had to enter Unix commands/code and I did not understand how to do this.
Thanks again,
Randy

Time Machine "preparing backup" eternally upon wake from sleep

at a bit of a loss here...
iMac 24" (version which offered 7300GT as BTO option)
10.5.5 with all updates applied
LaCie 500 gig USB 2.0 drive directly attached.
Up until about two months ago, Time machine functioned fined. Then for some reason, the following started to happen. (no known reason, no software update related etc, that I know of)
scenario... Time Machine functions correctly EXCEPT when waking from sleep. If iMac wakes from sleep and attempts a backup immediately (e.g. more than one hour has passed), it gets stuck "preparing backup" forever. I've let it run overnight (actually as long as about 30 hours), it never stops. Finder and other programs become extremely non-responsive, machine is almost unusable. Literally, the only way out is to manually shut down external drive, with attendant warnings/errors.
What I've done:
1) deleted the time machine .plist file
2) erased, repartioned (as a single partition) external drive
3) started brand new time machine backup (takes about three hours)
At this point, time machine will backup up fine... I can force a successful backup, if I leave the machine running, at one hour it does a successful backup.
BUT, as soon as it goes to sleep, time machine is hosed.
The only workable method for using time machine is to turn the external drive and time machine off when not using it, and turn the whole shootin' match on to do what essentially becomes manual backups. These backup are fairly lengthy, as time machine also does lengthy "preparing backup", but they complete in about 30 minutes to one hour.
Given that time machine doesn't give mountable/cloneable backup, I'm probably going to go back to Carbon Copy Cloner. Still, I like the ease/regularity of Time Machine, and would use it if it works.
Any ideas?
thanks

It could be a number of things. There are lots of things that Time Machine does in order to "manage" backups -- apart from just copying data to the backup drive.
It has to manage the transition of hourly backups into daily backups and must also transition daily backups into weekly backups. Each time it does this it has to move a lot of data around. It also has to maintain indexes of everything so you can quickly find backups should you want to perform a restore.
I've also noticed that there are circumstances that can cause TM to question whether it can trust it's existing backup database... I've caught Time Machine saying that it needs to do a "deep traversal" of the backup (basically it wants to check and see what it really has) and this can take a very long time.
Still... 30 hours is an extremely long amount of time. I'm almost wondering if there's a problem with either your USB bus or your drive when they wake up such that you may be getting a huge number of retries on something that should have happened quickly.
I'd suggest you start the "Console" utility, select "All Messages" at the left, and then watch the messages being written to your log file. Not only does Time Machine log all of it's progress messages to the system.log (in more detail than you'd see in the Time Machine UI), but so do lots of other system processes. If you're getting USB bus problems the error messages would likely show up in the same log. I'm especially suspicious about non-TM related causes since you said you've already blown away your TM backups & preferences and started from scratch and you're still getting the problem.
Try re-creating your problem with the Console log messages being displayed and see if you can't see something in the log that would let you get a little closer to the root cause.
Regards,
Tim

Screen blinks/flashes upon wake from sleep. is this normal?

I just got my Macbook a few days ago and started to notice that my screen flashes or blinks when it wakes from sleep. I have searched on Google and haven't seen any one post about it so I'm guessing this is normal. This is not the flicker of brightness that other people are talking about.
What happens is: I press a key or open the lid to wake it from sleep, and then very briefly for a second I will see the screen flash on (sometimes you can see a small image of the desktop), then it is black for a second, then the screen comes on normally. The delay of the screen coming back on after the blink seems to be getting longer so I was starting to worry this might be a problem. (granted the delay of the screen coming on is maybe like 2 seconds, but its noticeable) I had a Thinkpad previously and never noticed the screen acting like this.
If anyone can tell me if I need to bring this in to the nearest store or if it is normal I would appreciate it. I don't want to overreact as this is my first Mac and I don't have any problems so far. But I want to be safe if this is an indicator of future screen problems. Thanks!!
Macbook Mac OS X (10.4.8)

Take it to your local Apple store and they will send it off for repair. Or call Apple and they will send you a box to mail it in for repair.
I took my MacBook to the Apple store for the infamous screen flicker problem and they had the logic board and the LCD replaced. Problem is gone and the screen is better than before!
J

Alert beep upon wake from sleep

Hello,
I seem to have a strange alert beep that occurs when waking from sleep.
It only just appeared after I applied the 10.4.8 software update.
I wouldn't be concerned but today when I booted-up my machine immediately kernal paniced and told me to restart.
It seems independent of what software is open.
I can't seem to find any start-up items that could be to blame.
Any thoughts on trouble shooting this?
Thanks in advance,
Andrew

I just repeated the beep on wake from sleep.
Here is the console system log from before and after the sleep session.
Oct 15 11:44:05 r-r-andrew-nelsons-computer kernel[0]: hibernate image path: /var/vm/sleepimage
Oct 15 11:44:05 r-r-andrew-nelsons-computer kernel[0]: sizeof(IOHibernateImageHeader) == 512
Oct 15 11:44:05 r-r-andrew-nelsons-computer kernel[0]: Opened file /var/vm/sleepimage, size 1073741824, partition base 0xc805000, maxio 400000
Oct 15 11:44:05 r-r-andrew-nelsons-computer kernel[0]: hibernate image major 14, minor 2, blocksize 512, pollers 3
Oct 15 11:44:05 r-r-andrew-nelsons-computer kernel[0]: hibernateallocpages flags 00000000, gobbling 0 pages
Oct 15 11:44:08 r-r-andrew-nelsons-computer launchd: Server 0 in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[75]: exited abnormally: Hangup
Oct 15 11:44:08 r-r-andrew-nelsons-computer configd[34]: posting notification com.apple.system.config.network_change
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: System SafeSleep
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: hibernatepage_listsetall start
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: hibernatepage_listsetall time: 68 ms
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: pages 105739, wire 23101, act 14824, inact 19629, zf 9273, could discard act 19923 inact 18989
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: hibernatepage_listsetall found pageCount 105739
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: IOHibernatePollerOpen, mlget_interruptsenabled 0
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: IOHibernatePollerOpen(0)
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: writing 105519 pages
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: image1Size 37189120
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: all time: 3605 ms, comp time: 675 ms, deco time: 0 ms,
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: image 114174464, uncompressed 272822272 (66607), compressed 113735084 (41%), sum1 4c777e1e, sum2 e53985f3
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: hibernatewriteimage done(0)
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: sleep
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: Enabling XMM register save/restore and SSE/SSE2 opcodes
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: Started CPU 01
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: IOBluetoothHCIController::restartShutdownWL this is a wake from sleep
Oct 15 12:15:13 r-r-andrew-nelsons-computer kernel[0]: System Wake
Oct 15 12:15:15 r-r-andrew-nelsons-computer lookupd[242]: lookupd (version 369.6) starting - Sun Oct 15 12:15:15 2006
Oct 15 12:15:18 r-r-andrew-nelsons-computer launchd: Server 0 in bootstrap 1103 uid 0: "/usr/sbin/lookupd"[242]: exited abnormally: Hangup
Oct 15 12:15:18 r-r-andrew-nelsons-computer configd[34]: posting notification com.apple.system.config.network_change
Oct 15 12:15:18 r-r-andrew-nelsons-computer lookupd[249]: lookupd (version 369.6) starting - Sun Oct 15 12:15:18 2006
Any insight would be appreciated.
Cheers
MacBook Pro 15" 1.83GHz, 1G RAM, 80G HD (W8611), XP Home under Parallels Mac OS X (10.4.8) Dell Inspiron 4100 XP Home

Creaking sound upon wake from Sleep

I have only had my MBP (very first mac) last 1/25 and for a few days would wake from sleep totally silent. In the last couple of days occasionally it wil make a creaking sound for a couple of seconds after I raise the lid sounds kinda like gears. Not very loud tho. But since this is a refurbished (june 2012) unit I was just wondering if this is normal. My old toshiba would always make creaky gear sounding noises at wake from sleep for much longer. But since it is silent it is silent most times I was wondering if this was normal or a known problem?

Originally Posted by Lawrence-NYP
I suppose you have tried playing around with the sound settings in the control panel?
If that's the case, however no one else replies to your thread, you might consider re-format your computer.
In fact I have. And this is on a freshly formatted drive unfortunately.

Black screen upon wake from sleep when I change power state while in sleep

Hi,
I'm having this problem where my MacbookPro won't always wake from sleep.
OSX is 10.6.3 and fully updated.
I've done a lot of troubleshooting, and I can now replicate the issue 100%:
1 - Put the MacbookPro to sleep by closing lid
2 - Change power source (from plugged-in to battery or vice versa)
3 - open lid - MacbookPro will wake, but stays at black screen and is unresponsive.
Only if I change power state while sleeping will this issue show. Anyone else experincing this issue, and anygot got a clue on what to do?
regards,
Lasse

I've seen the same issue after upgrading to 10.6.3. I have a one year old MacBook Pro. I would have the screen be black after coming back from sleep or hibernate (tried both).
The workaround I found is to close the lid -almost- all the way and then immediately open it back up again, like I am catching the Mac going back to sleep and then changing my mind. For whatever reason, this has been reliably solving my issue for the last couple weeks reliably.
Only other oddity I noticed is that immediately after upgrading OS X told me that my one year old battery needed to go in for servicing...
Anyway, now all looks right with the world assuming you don't mind a quick close/open cycle.. Lovely...
Tim

Wireless connection lost after macbook pro sleeps for more than 15 minutes

It's annoying. I have a brand new macbookpro 3.06Ghz 17" hi-res screen running OS-X 10.6.3 and the wireless connection keeps dropping after the computer is either turned off or sleeping for more than 15 minutes.
My router is a linksys wireless G, has dd-wrt software in it which is very powerful. When I release or renew the DHCP at the router, the mackbook connects to the wireless network, no problem.
What configuration can be done at the macbook as to not have it time-out airport wireless connections unless I renew/release DHCP at the router? This is an annoyance beyond the limits of anyone's patience.... Thanks in advance for any help!

Well, since nobody answered this post I decided to try a bunch of things and I believe I came to a solution:
1 - Make airport the first connection under System Preferences->Network
2 - In the advanced window:
- Under AirPort: Keep only one network name on the list (the one you use all the time)
- Select 'remember networks this computer has joined' and deselect all other boxes
- Take note of the Airport ID (xx:xx:xx:xx:xx) and put it in your router's MAC address list. I do this because I only allow connections to my router from mac IDs that are on the list I create. In my case, I have my macbook pro and my PS3 system. If you don't know how to edit the MAC list in your router, do some research. It's pretty easy.
- Under TCP/IP: Select "Using DHCP" on the IPv4 drop box
- Select "Off" for IPV6 drop box
- Under DNS, after you connect at least once, you should see (grayed out) your router's IP address on the left box and the domain on the right side box.
Finally, under "Ethernet" you should see your Mac address there, the configure option should be set to Automatically and MTU as standard (1500).
Press OK and then press "Apply" and lock that screen by clicking on the padlock at the bottom left. BTW on the top of this screen Location should be "Automatic" - if not, select it and apply.
Done! Your wireless should connect quickly after the computer is turned on or waken up from sleep state. This assumes you configured your router correctly (mac addresses, frequencies, etc).
Good Luck to all who try this - at least I have not have any more dropped wireless connections.
Message was edited by: KEForex
Message was edited by: KEForex

Wireless connection lost upon wake from sleep

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