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

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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

Mission Control won't work after sleeping. Upon Start up it's fine, but after sleeping it won't work by track pad or keyboard.

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

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I have a powerbook G4. I have used it flawlessly for years between two locations, closing it up to sleep and opening up at the new location. It would find the airport base stations and connect perfectly. Now when I open it up, airport does not automatically connect and in fact does not show any of my neighbors' wifi hot spots. I use the airport utility and it finds nothing. Turning my airport on and off won't work either. In order for airport to work, I must reboot each time.
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DIXIE
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Hello Slinky09,
Thank you for using Apple Support Communities.
For more information, take a look at:
OS X: When your Mac doesn't sleep or wake
http://support.apple.com/kb/TS5357
If your Mac doesn't sleep or wake as expected, review the steps in this article.
Reset SMC
Reset NVRAM/PRAM
Test with external devices disconnected
Try Safe Mode
Try another user account
Have a nice day,
Mario

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Wifi won't work after sleep

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