Hello @Fishu,
If you haven't already attempted this, try to uninstall the product using the relevant uninstall tool from here and then perform a fresh reinstall.
Let us know if this solved the issue....
...I have already uninstalled using the bitdefender uninstaller tool and reinstalled, it installed normally but then after a reboot it again updated to the same version during the update check 15 min after...
...I've tried uninstall and fresh re-install a few times but as soon as it's installed the connection drops again. As soon as I unplug the USB storage device the network resumes passing traffic....
Did several things, non worked:
Did a software repair, no go
Uninstalled Bitdefender and reinstalled, no go
Reinstalled Steam, no go
I am on Bitdefender Total Security on Windows 11...
...Usually, the relevant uninstall tool fixes this behavior, however, in this case it seems that the situation needs to be investigated more thoroughly..
Let us know how it goes.
Regards
This is not normal behavior for legitimate TeamViewer installations and suggests that someone may be trying to maintain persistent remote access to your system....