Avast Business Client Update Causing Client Network Interruption

[REDACTED]

Hi all, I have about 0.5% of my Windows clients running into an issue where Avast seems to be in the middle of the update process and when they get to the point where a restart is required, all of a sudden the client loses network connectivity. They are effectively cut off from Wake on Lan, Remote Desktop, System Center Configuration Manager, and of course the Avast Business Console. So, there is no way to restore access remotely and our technicians are needing to be dispatched to physically address the issue.

Right now, the only identified fix is to completely remove Avast from the affected client and then do a complete reinstall. Is anyone else seeing anything like this?

Thanks,
Ryan

[REDACTED]

HI Ryan200
I have the same problem on certain pc's , my only fix was the same as yours uninstall and reinstall.
Anyone found the cause or fix ?

[REDACTED]

Sean,

I have not yet found a cause or fix, but my suspicions and time spent looking at this lead me to the following:

1. It is a combination of old(er) hardware, an old Windows 7 image, and Avast.
2. The more I look at it, search online, investigate, and troubleshoot personally, it looks more and more like some sort of software firewalling.

Some computers act as if they have no connection whatsoever. Others have some limited network services, but cannot reach beyond our network. This is pretty frustrating.

Thanks,
Ryan

[Benjamin145]

Same problem for half of my windows 7 clients.

It's old hardware but windows is up to date. Maybe incompatibility with an old network driver, i will try to update this.


When i try a ipconfig /renew, i have this error : "An attempt was made to access a socket in a way forbidden by its access permissions"
Sometimes, after restart, it work, sometimes not.

[Asyn]

Contact business support: https://www.avast.com/business-support-contact-form.php