Mbp wont reconnect after sleep

Used to be able to just put to sleep by closing cover and reopen. It would reconnect before I had it all the way open. Now I have to connect it manually every time. Only happens at some locations - other locations still work. Read somewhere about similar WiFi names but not sure that is the problem.

Hi Guy's,
I bought my MBP last Thursday and it was working fine until 2 days ago when I got the checkerboard after only a few minutes of use. Hardware check gave back the Failure code: 4SNS/1/40000000:'Tm0P' which I sent to Apple but no reply yet.
I'm bringing it back to the shop first thing tommorrow morning. I don't have time to wait a week or two for them to fix the problem especially if their "motherboards" all got the same hardware onboard. I haven't been able to spot any stories by Apple about this issue.
Looks like Apple has a QA issue with their ATI-X1600, or that the QA issue is ATI's all the way.
MBP 17" 2GB Mac OS X (10.4.7)

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Windows 7 brightness reverts back, wifi takes long to reconnect after sleep

Hi fellow members,
My brightness setting keeps reverting to max. I have tried setting via power manager and also from control panel.I can adjust but when the computer restarts, the brightnes reverts to max. It started happeing around a month ago. I didn't have these issues until about 2 months ago. I have had my x301 for over an year without issues.
Another issue I have been experiencing is that wifi takes a long time to reconnect after sleep. About 5 minutes. This is also a new issue.
I have the latest BIOS, latest power manager, all drivers are upto date. Here are the specs.
ThinkPad X301, 4GB, 13.3in 1440x900 LCD, Intel 4500MHD, Intel 802.11agn wireless, Bluetooth, 1Gb Ethernet, UltraNav,
Win7 Pro 32, Service Pack 1
Intel WiFi Link 5100 AGN
Driver Date: 8/3/2011
Driver Version 14.2.0.10
Video Card
Mobile Intel(R) 4 Series Express Chipset Family
Video Card Chip Type
Mobile Intel(R) 4 Series Express Chipset Family
Video Card Memory
1.26 GB
Video Card BIOS
Intel Video BIOS
Driver
c:\windows\system32\drivers\igdkmd32.sys
Driver Version
8.15.10.2555, 10-13-2011
Mobile Intel(R) 4 Series Express Chipset Family
Driver
c:\windows\system32\drivers\igdkmd32.sys
Driver Version
8.15.10.2555, 10-13-2011
BIOS
Vendor
LENOVO
Release Date
12/10/2010
BIOS Version String
6EET54WW (3.14 )
ROM Size
8.00 MB

Check in the Windows power profile for the brightness issue. Windows will apply it's own at boot, then Power Manager will override, which leads to a momentary discrepancy.
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

Slow reconnect after sleep

My early 2006 iMac takes a long time to reconnect to my wireless network after sleeping. It finds the network no problem just takes up to a minute to "wake up" and find and join the network. Is there any way to speed up this process? My Macbook connects about ten times faster after coming out of sleep so it has to be something with the iMac and not the network.
Thanks for any help.
iMac Intel Core Duo 2gig. Mac OS X (10.4.9) 2Gig ram

ttt

Solution for 'my mac will not reconnect after sleep'

After lots of trial and errors I found the way around the problem of dropped or very poor wireless connection after you put your mac to sleep.
I have no idea what the problem really is but this procedure has stopped me from throwing my brand new MacBook through the window.
1) Go to System Preferences -> Network -> Advanced
2) Remove any network you have there memorized
3) uncheck option 'Remember any network this computer has joined' (leave the other options also unchecked)
4) press ok and switch AirPort off ... then on (make sure you have 'Show AirPort status in menu bar' checked)
Now the only real change we've made is to stop Mac memorizing our network - but here lies the solution.
Put your MacBook to sleep and than wake it up. It will not connect to the network (none are memorized) but all you have to do is choose your network name from the list on the menu bar. It might ask you for the key but in my case it simply asks for permission to use my KeyChain (memorized WPA2 password).
Once I press 'Allow' .... it works as it should! eureka!
Do not check 'Remember this network' when asked for password.
As long as Mac does not store your network details it reconnects without problems, once you allow it to store these details, re-connection after sleep goes pear-shape.... figure it out Apple!
I hope this might help you (as it most certainly works for me)
best regards
ffar

I've run Keychain utility. I also removed (as suggested in various places) any entries referring to my wireless password in KeyChain and allowed them to be memorized again. It doesn't change a thing.
Please understand me correctly. My Airport does re-establish connection automatically (if network details are stored) but connection is extremely flaky, slow and with frequent dropouts. So the Keychain is not to blame here (I think).
If I establish connection 'semi-manually', as described in my previous post, it is perfect, just as it should be. This would indicate to me that the problem lies not with the Keychain, but in the way OS stores network details.
If I do not allow OS to keep network details - re-connection works.

Wireless network does not automatically reconnect after sleep

I have a Belkin wireless G+ mimo modem router network. When I wake the mac from sleep it does not automatically reconnect to my wireless network and i have to manually select the network from the airport icon in the menu bar and then it connects without having to reenter my secure password. How do i set the mac to auto connect to the network after sleep? There are about 6 other wireless networks in range which may be effecting this reconnection.

In may case the network was already at the top of the preferred networks list.
Based of of a hint over at MacOSXhints.com, here's how I fixed this problem:
1. In the Network references pane, delete the Airport connection that does not like to reconnect.
2. Click Apply and Quit the System Prefs app.
3. Put the computer to sleep.
4. Wake the computer.
5. Go back in to the Network pref pane and re-add the Airport connection. Do not try to connect to the network at this time.
6. Click Apply and Quit the System Prefs app.
7. Use the Airport menubar app to connect to your network.
8. Verify connectivity
9. Put the computer to sleep.
10. Wake the computer.
11. Verify connectivity
My machine now consistently reconnects when coming out of sleep or restarting.
God luck!

How to make trackpad automatically reconnect after sleep?

I have a magic trackpad and an MB Pro.
When I return to the computer after it has been sleeping overnight, the magic trackpad will not reconnect automatically. If the computer sleeps briefly, the connection is restored automatically. If the trackpad is powered off after sleep, it will reconnect when powered on. But after a long sleep, or perhaps when I have disconnected the laptop for a while I cannot easily make it reconnect.
It will not reconnect if: I click the power button, click the trackpad, select the trackpad by name and connect from the bluetooth menubar item, connect manually through bluetooth preferences, or turn off the trackpad entirely then turn it on again (force into discovery mode).
The only somewhat reliable way I have found to reconnect is: 1) turn off trackpad power, 2) go to trackpad preferences, 3) set up bluetooth device, 4) power on trackpad, 5) select continue when device is found.
When disconnected, in bluetooth preferences, the device is shown as being paired. I added it to Favorites. It is discoverable. Battery power is good.
I can reproduce the same symptoms with these steps: 1) put the computer to sleep, 2) manually turn off the trackpad, 3) turn on the trackpad again (it blinks, indicating attempt to discover), 4) wake the computer.
Can anyone help me find a less time-consuming way to re-establish a connection when the computer wakes from sleep?
Thanks,
Tom

Hi Jeff,
Thanks for the suggestion. I tried the 'root bridge' in Access Point mode but the remote devices did not try to reconnect. I also tried 'non-root bridge', 'root bridge with network clients', 'automatic' etc. I let it sit for a few minutes after each change to see if it helped.
I've going to change it to 'Access Point' again and leave it overnight to see if one of the three remote Workgroup Bridges that are currently unavailable will re-connect.
I know if I ask the site electricians to power the remote Workgroupd Bridges off and on they will connect for a while - its quite frustrating!
Thanks again
Richard Cronin

MBP shuts down after sleep when 2% battery left

Sorry guys if u find it irritating to see the similar question again n again but i couldnt stop myself from asking this...
          i have my mbp just 3 weeks old and i tried to callibrate the battery just few hrs ago...i continuously used my mbp until the battery level reached to 2% (the warning message showed when it was 6%)...just then i had to received a phone call. When i was busy talking, i noticed that the mbp has gone to sleep mode...but when i returned (2-3 mins later), i found it shut down...
          well, i think it should have remained to sleep mode but it didnt...then after an hour i connected the power cord and switched on and noticed a progress bar which i saw for the first time....i have been charging it for 40-50 mins, now...
          also the health of my battery keeps fluctuating between 95-100 %...istat shows this...is this normal???
          So what i want to know is, Is this normal for mbp to shut down when the battery reach that low?? OR there is some problem in my MBP???
if there is should i be going to my mbp reseller shop for service or it is something i can handle myself????
thanks in advance..

then how am i supposed to callibrate if it shuts down before completely draining the battery???
and what about the battery health % being fluctuating? my battery have completed only 9 cycles and the health shown at the moment is 97%

Smb wont connect after sleep

hello all ,
macbookpro mid 2009 osx 10.6.4, windows 7
having this prob since the first day i got my mac .
it sim that after sleep the smb connection dropped and only hard reset will solve the prob .
ive been in many forums and this issue sim to be very popular .
im very disspointed that apple dont have any mail service for applecare users .
anyway i hope some experts will read this msg and post up agood answer .
thx in advance
moshelog

I was having the same problem but think I have found a solution. So far I have put my Macbook to sleep about 6 times and I can still reconnect to my network servers.
I found the solution here: http://forums.macrumors.com/showthread.php?t=518958
Here it is:
1. Open network preferences from your WiFi icon in the menu bar. Then click advanced. Delete the network that is giving you problems.
2. Open Keychain in the utilities folder of your hard drive. Find the passwords that are stored for your particular network and delete them. There may be multiple passwords for your network, so search carefully.
3. Repair permissions using the disk utility.
4. Reboot the computer.
5. Reenter your network data to log into the network.
Good luck!

Mbp running slow after sleep mode

My MBP runs extremely slow after sleep mode (closing lid). It seems like Safari will take up much RAM. But I use a memory freer which supposedly should solve the problem. So after all I am not sure what is the real cause and what could solve this.
BTW it runs normally after a reboot.
Mine is a mbp 13" refurb purchased in March, 2012.
Processor 2.4 GHz Intel Core i5, 4GB RAM

I too have been noticing problems in slow behavior after sleep mode. It has gotten so bad I have been restarting it regularly or shutting down much more regularly. It behaves almost like normal after a re-start.
It is almost like the hard drive is failing? Last time this happened I put a new HD in. I am usually running a large number of different programs, always multi-tasking, which has been a mac fortie. Seems worse with the last few updates. My I mac is 24" imac 2008 model. replaced drive just before apple care expired.
Razz

Dvd tray wont open after sleep

is there any fix for this problem...(os 10.4.3 on G5 2.7 dual)..

rebooting allows full functionality of dvd drawer and recorder
also, after sleep i find that disk utilities hangs up and i need to force quit it..
it also comes back after reboot

G50-45 Wifi takes 4 minutes to reconnect after sleep

Running Windows 8.1 Waking the laptop from sleep or hibernate causes the wifi not to connect right away, wifi is still connected and icon in taskbar show the wifi enabled but it takes like 4 minutes for the internet to work after sleep, get DNS errors form browser before it finally conects, I have done a Google search on this issue and have tried all the soulutions recommended and nothing seems to work. Some of the things I tried: Uncheck the power managerment to allow computer to turn off device.Update the BiosSet wifi to maximal performanceUpdated and installed optional Windows updatesNote: After I updated the Bios and installed optional Windows updates, it made the laptop a lot faster but still have the same problem with the wifi.

Hi Mrbell1970,
Welcome to Lenovo Community Forums!
Also Please try Turning ON
here's how to get to the option
http://www.dummies.com/how-to/content/activate-hybrid-sleep-on-windows-pcs.html
Let me know if this works for you
Regards
Solid Cruver

External hard-drive does not reconnect after sleep

Hi everyone
I am trying to use my Energy Saver to SLEEP my iMac after 1 hour. It goes to sleep no problem, but on wake-up, my external USB hard drive does not reconnect. There is also an error message that I didn't disconnect the drive properly. I fear this may be one of Mac OS X's "features". Has anyone encountered the same thing?
On a side note, I also find that my USB keyboard does not always reconnect as well. I use a windows USB mouse that I have connected to wake it from sleep, however my USB keyboard (the small one for Macs), sometimes does not allow me to type unless I unplug it and back in.
Another point of note is that both the HD and the keyboard are connected to the iMac through a 7 port USB hub.

r_dizzle wrote:
Another point of note is that both the HD and the keyboard are connected to the iMac through a 7 port USB hub.
I think this might be the issue. If the iMac is waking back up, it will likely be waking up this HUB, but the HUB might not be re-initialising the connection between OS X and the external drive or the keyboard.
After waking the iMac, if you unplug the external drive from the HUB, then plug it back in again, does OS X pick it up again? Have you tried plugging the external drive directly into the iMac and then testing what the result is?
If you read back on what you've said, you pointed out that you have a USB mouse that you use to wake the iMac from sleep. Is this mouse directly connected to the iMac? If so, it surely can't be a coincidence that a directly connected USB device can wake the iMac from sleep, but any USB devices connected to the iMac via a USB HUB cannot.
I would suggest you test the drive as it is directly connected to the iMac. I would complete the same test with the keyboard too. I think you'll find it's the USB HUB.
I hope this helps.

WiFi must manually reconnect after sleep (since updating to 10.9.4)

My MacBook Air (Mid 2011) just updated to 10.9.4 and now the WiFi doesn't reconnect to my home network when I resume from sleep (open the lid). I need to click the WiFi icon and re-choose the home network each time.
This is new since I updated. Ironically, when I read the update notes, it was supposedly to fix this type of issue from occurring in the first place, and yet I never had the problem until after I updated.
Thanks for any help you can provide.

Troubleshooting Wi-Fi issues in OS X
Wireless Connection Problems - Fix
Wireless Connection Problems - Fix (2)
Wireless Connection Problems - Fix (3)
Wireless Connection Problems - Fix (4)
Wireless Diagnostics - About
Also try turning off Bluetooth

MBP wont go into SLEEP mode!

Until the past week or so my computer will not go into sleep mode. It will black out like its going into sleep mode than after 3-5 seconds it will wake back up. This is becoming very irritating since I want to run my computer in 'clamshell' mode while I've been using my Dell external display.
Computer was fine for past 2 months up until about 5 days ago. If it makes a diff. i have an iphone hooked up with the update and I did the most recent MBP updates.
any help?????

I am having a similar issue with my new SR 17" MBP. it will shut off the display, and will appear to be trying to sleep, only to spring back to life. The only thing that makes a difference seems to be Airport. If Airport is off, the machine sleeps fine. if it's on, very rarely will it sleep. I also checked the console and keep seeing something about an "mdnsresponder error". It doesn't matter whether i try to sleep the machine by selecting sleep in the apple menu, using the power button, or closing the lid. They all give the same result.
Here's my thread that I posted a few days back.
http://discussions.apple.com/thread.jspa?threadID=1079305&tstart=210

Wireless slow reconnect after sleep.

After my laptop wakes from sleep it takes about 30 seconds for it to reconnect to my wireless network. Windows does this almost instantly. Is there any way I can get this to happen instantly?

Could be a timeout setting (I assume you're using NetworkManager). I have the same issue, but usually take the 15-30 seconds to think about what I'm going to accomplish next

Mbp wont reconnect after sleep

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