Are any of you using AVG 9 Internet Security Business Edition along with IIS 6.0 and if so have you experienced problems?
We just went from 8.5 to 9.0... Luckily I tried on only one of the servers in the web farm first to run for a week to make sure it played well with my servers. A few hours after the install all web apps were giving a "connection refused" error. Neither iisrest or restarting world wide web publishing services resolves the issue, only rebooting the machine brings the webs back up. They are all ASP.Net sites by the way (v2.5). What's interesting is if I take the machine out of the load balancer, the machine runs fine and the webs are just fine for days... as soon as i put it back in the pool it's only a few hours before its sad.
The only thing I can think of right now is that the Resident Shield may be causing an issue, any thoughts?
Have you tried temporarily disabling the resident shield to find out if that's the problem?
Did you install the AVG firewall along with AVG9?
Are there any logs that AVG generates that you can look through?
The only thing I can figure is that something went wrong on the during the install of AVG. After removing it entirely and re-installing it everything worked fine.