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

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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
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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.
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M3800 Developer Edition: wifi doesn't work after sleep

I have an M3800 Developer Edition (2015 model). Ubuntu is factory-installed 14.04, with hardware enablement stack installed. Recently (past 1-2 weeks) wifi doesn't work after sleep (lid closed or open doesn't matter), and only rebooting gets in back. Tried rmmod and modprobe with no success. Has anyone else seen this, and/or are you aware of any open bug(s) for this?
Relevant ouput:
lsmod when problem exists:
iwlmvm                217725 0
mac80211              652718 1 iwlmvm
iwlwifi               179412 1 iwlmvm
cfg80211              494362 3 iwlwifi,mac80211,iwlmvm
rfkill list when problem exists:
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
3: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
rmmod the above, then modprobe iwlwifi. Does not fix problem, only rebooting does:
May 4 08:23:14 jonathan-m3800 kernel: [69089.189614] cfg80211: Calling CRDA to update world regulatory domain
May 4 08:23:14 jonathan-m3800 kernel: [69089.192181] cfg80211: World regulatory domain updated:
May 4 08:23:14 jonathan-m3800 kernel: [69089.192184] cfg80211: DFS Master region: unset
May 4 08:23:14 jonathan-m3800 kernel: [69089.192185] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
May 4 08:23:14 jonathan-m3800 kernel: [69089.192187] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
May 4 08:23:14 jonathan-m3800 kernel: [69089.192188] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
May 4 08:23:14 jonathan-m3800 kernel: [69089.192189] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
May 4 08:23:14 jonathan-m3800 kernel: [69089.192190] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
May 4 08:23:14 jonathan-m3800 kernel: [69089.192191] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
May 4 08:23:14 jonathan-m3800 kernel: [69089.204141] Intel(R) Wireless WiFi driver for Linux, in-tree:
May 4 08:23:14 jonathan-m3800 kernel: [69089.204143] Copyright(c) 2003- 2014 Intel Corporation
May 4 08:23:14 jonathan-m3800 kernel: [69089.204414] iwlwifi 0000:06:00.0: irq 48 for MSI/MSI-X
May 4 08:23:14 jonathan-m3800 kernel: [69089.204904] iwlwifi 0000:06:00.0: loaded firmware version 25.228.9.0 op_mode iwlmvm
May 4 08:23:14 jonathan-m3800 kernel: [69089.207709] iwlwifi 0000:06:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144
May 4 08:23:14 jonathan-m3800 kernel: [69089.207790] iwlwifi 0000:06:00.0: L1 Enabled - LTR Enabled
May 4 08:23:14 jonathan-m3800 kernel: [69089.208150] iwlwifi 0000:06:00.0: L1 Enabled - LTR Enabled
May 4 08:23:14 jonathan-m3800 kernel: [69089.392408] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
May 4 08:23:14 jonathan-m3800 NetworkManager[901]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:00/0000:00:1c.2/0000:06:00.0/net/wlan0, iface: wlan0)
May 4 08:23:14 jonathan-m3800 NetworkManager[901]:    SCPlugin-Ifupdown: device added (path: /sys/devices/pci0000:00/0000:00:1c.2/0000:06:00.0/net/wlan0, iface: wlan0): no ifupdown configuration found.
May 4 08:23:14 jonathan-m3800 NetworkManager[901]: <info> (wlan0): using nl80211 for WiFi device control
May 4 08:23:14 jonathan-m3800 NetworkManager[901]: <info> (wlan0): driver supports Access Point (AP) mode
May 4 08:23:14 jonathan-m3800 NetworkManager[901]: <info> (wlan0): new 802.11 WiFi device (driver: 'iwlwifi' ifindex: 4)
May 4 08:23:14 jonathan-m3800 NetworkManager[901]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devices/2
May 4 08:23:14 jonathan-m3800 NetworkManager[901]: <info> rfkill5: found WiFi radio killswitch (at /sys/devices/pci0000:00/0000:00:1c.2/0000:06:00.0/ieee80211/phy0/rfkill5) (driver iwlwifi)
May 4 08:23:16 jonathan-m3800 ModemManager[852]: <warn> Couldn't find support for device at '/sys/devices/pci0000:00/0000:00:1c.2/0000:06:00.0': not supported by any plugin
lspci:
06:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
After reboot:
lsmod |grep -i iwl:
iwlmvm                217725 0
mac80211              652718 1 iwlmvm
iwlwifi               179412 1 iwlmvm
cfg80211              494362 3 iwlwifi,mac80211,iwlmvm
rfkill list after reboot:
0: nfc0: NFC
        Soft blocked: no
        Hard blocked: no
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
2: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

Wi-Fi still not reconnecting after sleep
http://forums.macrumors.com/showthread.php?t=1229591

Wifi doesn't work after sleep

I'm having an issue where my wifi will stop working after sleep. This isn't the same problem where the network had to be manually reconnected--
The "radar" will be grayed out, and I can see the networks if I click on it, but I cannot reconnect, disable wifi (make the radar the pie shape). The only thing I can do is do a hard reset holding the power button until the computer shuts off.
In fact, if I select 'Apple -> Restart,' nothing happens. I have to hold the power button down.
Any thoughts?

Wi-Fi still not reconnecting after sleep
http://forums.macrumors.com/showthread.php?t=1229591

Wifi won't work after sleep

I close my Macbook Air and put it to sleep. Then when I open it to wake it up, the wifi will not connect. The 'Fan" wifi icon shows it is searching for a connection but after a moment it stops.
This happens at work, home and school.
I have to turn the wifi off and then turn it back on to get it to work.
Any suggestions?

Wi-Fi still not reconnecting after sleep
http://forums.macrumors.com/showthread.php?t=1229591

Problems with networking after sleep since March 1st EPI firmware update

Hi,
After the new EPI firmware upgrade of my macbook pro (4 months old) a problem that I had 3 months ago re-appeared again :
when I received my laptop (Lion, fully updated) a few months ago it had problems getting internet access after waking from sleep : it could detect the wifi-network, it was connected and when I tried to ping -for example- google.com in terminal it would answer. This means my network was working and DNS was working too...
Only when opening safari, or software update or any other program that wants to go online, it would give me a 'no internet connection' message. After 3 minutes or so, it would work again (wihtout doing anything). I tried renewing the DHCP lease, moving the order of interfaces, re-adding the networks after deleting but nothing helped.
The problem back then was solved after a firmware upgrade, and it would be online 2 sec after waking from sleep.
After this week's firmware upgrade the problem came back......
Anyone have any suggestions, or anybody know if Apple is working on it again?
Thanks,
Koen

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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

Problems waking up after sleep since 10.8.3 update

A couple of weeks ago, I updated to 10.8.3. Since then, I have been having difficulty waking the machine after sleep. I get the constant beach ball. On a forced restart, I will get the spinning gear followed by the prohibitory sign, like it can't find the OS. I have tried rebooting in safe mode, resetting PRAM/NVRAM, repaired disk and disk permissions with disk utility, checked the status of hardware with (AHT), reinstalled OS X (twice), but the problem persists. I'm at a loss and have no idea what else to do.
I'm seriously regretting upgrading from Snow Leopard at all.
I've been trying to run time machine to back everything up, but my external USB backup disks keeps randomly unmounting, so I can't even get a solid backup now.
Please help.

No, it has nothing to do with being Friends or not.
There are more and more security issues with java, Oracle comes with updates almost every few weeks. Until lately Apple had it in theuir distribution system, but because of the security issues decided that it was not good business to distribute automatically this leaky system. So with new system updates the Java is removed to make sure the customers reinstall the latest version. You can download from both Oracle and Apple, but don't download from any other source.
Luckily I do not need it anymore and have not installed Java since a few months.

WIFI does not reconnect after MBP sleeps

When my new MBP Retina wakes up the wifi dies not reconnect. I have to "Turn WIFI off" and back on again. My late 2011 works without a problem on the same netowrk. I have been to an Apple Genius four times. I have even returned the MBP and got a new one. Same problem....
Any suggestions. Could it be the Linksys wifi router? SOuld I get an Apple AirPort Extreme????
THanks
Monty

I can not believe it, a new wifi router fixed it (so far)
I've let my Mac slap about 10 times and it reconnected w/o an issue
Monty

WIFI does not reconnect after a standby

Since I installed "OSX Mavericks" on my MACBOOK AIR, the wireless network does not reconnect after a reboot or standby. I need to disable the wireless and reactive for the connection resumes!
Thanks for your answer...

http://carnationsoftware.com/LastA2DPDevice_Mac_Wireless_Problem.html
Trash your Bluetooth preferences, restart your Mac.
Open Bluetooth Preferences (Apple Menu, System Preferences, Bluetooth)
Remove any audio devices that are shown in the upper section of that list.
Pair your Bluetooth Speaker or headset device and then connect and disconnect it.
Open /Library/Preferences/com.apple.Bluetooth.plist
If the LastA2DPDevice item is present, then you know you have just paired a A2DP device. You need to trash your Bluetooth preferences and restart your Mac again.
The problem is caused by an interaction with Bluetooth and specifically Bluetooth devices that use Advanced Audio Distribution Profile (A2DP) which is used to stream bluetooth audio from devices such as Bluetooth headsets and Bluetooth speakers.
The problem is caused when the Mac goes to sleep and wakes back up. It tries to connect to the A2DP device that was last used by the Mac. If that device is not powered on or is not in bluetooth range, it will keep trying to connect to that device (for an unknown amount of time). While it is looking for that Bluetooth device, the 802.11 wifi is also looking for the last wireless router or access point and fails to find it.
Why the wifi is unable to reconnect after waking from sleep is not exactly clear because wifi is a different protocol than Bluetooth. One hint is that it only seems to fail with wireless routers that run on the 2.4 Ghz band. That is the same frequency that Bluetooth uses (even though Bluetooth hops through different smaller bands within that frequency.)
I do not have the problem when at home and connected to my Airport Supreme Wireless AC router which is running on the 5 Ghz band.
To prove this, here is what I did...
1. Go to a location where you are having the sleep / wake wireless problem and take your Bluetooth speakers or Bluetooth headphones with you.
2. Now while at that location, Connect to the wireless network there.
3. Turn on the power to your Bluetooth device (speakers or headphones).
4. Turn Bluetooth on and connect to your Bluetooth device.
5. Put your Mac to sleep for 45 seconds (that is enough time for the Macbook to shut down power to Bluetooth.)
6. Wake your Mac back up and you will notice that there is no problem reconnecting back to the wireless network.
7. Now turn OFF the power to your Bluetooth device and put your Mac to sleep for 45 seconds.
You will see that your MacBook will not connect back to your wifi wireless network after it wakes from sleep.
That is because it is looking for your Bluetooth device that it cannot find.
Note that this test is only valid if you are using a Bluetooth device that uses the A2DP protocol. I did my tests with a Bose Soundlink Mini speaker.
I am connecting to a Netgear N300 Wireless Router (WNR2000)

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

2 x Apple TV 3 units purchased late 2013 both dropping WiFi or performing terribly after sleeping

Hello,
I purchased these 2 apple TV units separately. One of them was purchased from the Apple store in July 2013 and the other in September 2013. They operate perfectly when I used a wired connection but when I use WiFi they both drop the connection randomly and perform terribly (unusable) when coming out of sleep. When the Apple TV's are rebooted they work well again but I shouldn't have to restart them every time I want to use them after they've been sleeping.
The WiFi AP I use is a D-Link DAP-2310. In addition to running the AP as 802.11b/g/n I've tried to configure it as 802.11b only, 802.11b/g only and 802.11n only. This makes no difference with the performance other than in 802.11b only it's just slow all the time of course. While configured as 802.11b/g only I turned off WMM but this made no difference. The network performance was absolutely terrible (unusable) after they were sleeping as usual. AFAIK with 802.11n WMM is always on since the option is greyed out and set to "yes" when 802.11n only mode is set.
My wife's PC uses WiFi and has no problems (continuously using 802.11n). My MacBook Air uses 802.11n continuously with no down-grade to a lower 802.11 mode and has no problems. I've ensured my WiFi channel is not being used by any other visible SSID around my house. I am using channel 3 and no one else is.
I heard about an Apple TV 3 replacement program and originally the serial numbers that had the problem matched my unit but apparently Apple had the positions of the letters wrong and my Apple TV's no longer qualify for this replacement program. (See https://discussions.apple.com/message/21802730#21802730 for more info on that)
Not sure what my next move should be.

Hi vazandrew,
Thanks for replying. I downloaded iStumbler but it pretty much does the same thing as the WiFi diagnostics tools built into OSX (some information http://osxdaily.com/2012/07/31/wi-fi-scanner-mac-os-x-mountain-lion/).
I used the WiFi diagnostics tools to make sure the signal was good in the rooms where the Apple TV 3 units and also made sure nothing else was using the same channel. It's possible, although not likely because I live in a fairly rural area, that someone has a non-broadcasted SSID on the same channel as me. I don't think that's the case though.
I did switch channels a few times over the course of 3-4 days last week but that didn't make any difference in the performance after sleep on the ATV3 units. I also changed from 40MHz to 20Mhz channel width as well. These changes made no difference. The ATV3 units still had terrible and unsuable network performance until they were restarted. A power cycle is not necessary though - just a restart.
I've had the DLink AP for just around a year. My previous WiFi router died so I stepped up to a Cisco RV042G and a DLink AP so if my WiFi bridge died I'd just be replacing the AP instead of a whole router.
Since the problem is with both ATV3 units its either both of them because they are similar production times *OR* the AP itself. Since I have absolutely no problems with WiFi on my laptop or my wive's PC though that kind of leaves the ATV3 units as being misbehaving.
Maybe I'll just have to spend a few bucks on some cabling and a small switch and put wired ethernet on these suckers.

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

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

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