Author Topic: Avast stops WiFi from starting on boot  (Read 2360 times)

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Offline Cliff_g

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Avast stops WiFi from starting on boot
« on: July 08, 2019, 01:09:18 PM »
Have had a problem for a while now (several months), possibly made worse by an MS update but have tracked it down to a clear interaction with Avast.

Win 7 Pro with Avast Free

- When I turn the machine on there is a 50+% chance that the machine will not start properly. Most obviously, the Wifi will not connect and retains a blue circle "waiting" over the wifi icon in the system tray.  I have also tried to examine task start-up statuses using services.msc, but that refuses to start also.  Other tasks seem to run (such as I can start Windows Explorer, Process Explorer) but the machine is in general very slow.
- A restart will 100% fix the problem and the machine will start ok.  However, the shutdown when doign this takes a very long time (10+ minutes) with near-constant disk activity during that time
- If, each time I turn the machine off, I turn Avast off before shutting down the machine then the problem does not occur
- Have updated Avast to 19.6.2383 (build 19.6.4546.494) and the problem is still there

Obviously, a magic solution would be best, but otherwise are there any logs I could access and submit? Thx
« Last Edit: July 08, 2019, 01:10:50 PM by Cliff_g »

Offline Asyn

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Re: Avast stops WiFi from starting on boot
« Reply #1 on: July 08, 2019, 07:53:44 PM »
1. Download Avast Free Antivirus: https://files.avast.com/iavs9x/avast_free_antivirus_setup_offline.exe
2. Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions..!!)
3. Reinstall Avast with the downloaded installer from point 1.
4. Reboot.
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Offline Cliff_g

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Re: Avast stops WiFi from starting on boot
« Reply #2 on: October 08, 2019, 01:19:23 PM »
Have had Avast uninstalled (using the full uninstall program) for a while now, machine has behaved perfectly.

3 days ago, reinstalled Avast free. First couple of boot swere ok, but this morning the SAME old problem has appeared.  Avast is clearly interferign with something so I have taken it off again.  Unless this is recognised by Avast and a fix implemented, or at least someone can tell me how to provide logs etc, than it's bye bye Avast

Offline Asyn

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Re: Avast stops WiFi from starting on boot
« Reply #3 on: October 09, 2019, 05:05:05 AM »
- OS..? (32/64 Bit..? - which SP/Build..?)
- Other security related software installed..?
- Which AV(s) did you use before Avast..?
W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline Cliff_g

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Re: Avast stops WiFi from starting on boot
« Reply #4 on: October 09, 2019, 11:13:07 AM »
Win 7 Pro 64 bit  SP1 original Dell OEM, fully MS patched through to period if problem.
Rebuilt afresh about 2 years ago
No other live AV.  Malwarebytes periodic scan
No other AV has ever been on the machine.

I saw a few posts on Woody's a while back (6-9 monthd?) suspecting an MS update of comms issues in conjunction with a number  of AVs but has gone quiet now. But on my own 2 machines on W7 I am now sure part of the problem is Avast. My W10 machine with Avast is fine, but then W10 has a vastly different (and faster) boot sequence

Offline Cliff_g

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Re: Avast stops WiFi from starting on boot
« Reply #5 on: October 09, 2019, 11:15:58 AM »
There must be a way to provide diagnostics dumps to Avast.

Offline bob3160

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Re: Avast stops WiFi from starting on boot
« Reply #6 on: October 09, 2019, 01:11:25 PM »
There must be a way to provide diagnostics dumps to Avast.
You could try the following.
Submitting a support file using the Avast Support Tool: https://www.avast.com/faq.php?article=AVKB33
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Offline Cliff_g

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Re: Avast stops WiFi from starting on boot
« Reply #7 on: October 09, 2019, 02:28:44 PM »
Thanks, do you know if this grabs a log including past events or just a snapshot as-is, because when the wifi refusal occurs, the rest of the machine freezes too and requires a reboot?

Offline bob3160

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Re: Avast stops WiFi from starting on boot
« Reply #8 on: October 09, 2019, 02:36:42 PM »
Thanks, do you know if this grabs a log including past events or just a snapshot as-is, because when the wifi refusal occurs, the rest of the machine freezes too and requires a reboot?
Sorry that's something Avast would have to answer it's their tool.
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Offline bob3160

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Re: Avast stops WiFi from starting on boot
« Reply #9 on: October 09, 2019, 02:42:24 PM »
You might also want to give the following utility a try.
https://www.rizonesoft.com/downloads/complete-internet-repair/
It's my go to utility when there's an internet access problem other than my ISP.
I usually check the top 5 options hit the go button, let it finish it's task, and reboot.
Free Security Seminar: https://bit.ly/bobg2023  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 11 Pro v22H2 64bit, 16 Gig Ram, 1TB SSD, Avast Free 23.5.6066, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq -- My Online Activity https://bit.ly/BobGInternet

Offline Cliff_g

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Re: Avast stops WiFi from starting on boot
« Reply #10 on: October 09, 2019, 02:49:29 PM »
Thx, may try, but again, if it needs a non-frozen machine....

Offline mchain

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Re: Avast stops WiFi from starting on boot
« Reply #11 on: October 09, 2019, 07:51:07 PM »
Thx, may try, but again, if it needs a non-frozen machine....
You've options:
  • Set your wi-fi to start after Windows loads completely.  In other words, remove wi-fi from your startup list
  • Use a CAT5 (wired) connection and turn off your wi-fi for now/li]
Windows 10 Home 64-bit 22H2 Avast Premier Security version 24.1.6099 (build 24.1.88821.762)  UI version 1.0.797
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