We have been using OpenVas to scan our servers for months now. Recently the scans are getting stuck on different %, always below 30%. We did not change anything in my local configuration. I read a post somewhere that I should lower the maximum concurrently executed NVTs per host to 4 and maximum concurrently scanned hosts to 5.
Does anybody have other suggestions of what setting should we check?
Could it be firewall or something blocking the scan so it times out?
Any suggestions would be greatly appreciated.