Without seeing a detailed error warning/message or screenshot it is difficult to say what the problem/reason might be. What firewalls are they using, etc.
After a program update the Internet Mail scanner ashMaiSv.exe will have changed, if firewall permissions are blocked by the firewall you could get a timeout style warning. Ensure firewalls allow access for ashMaiSv.exe, this will either resolve the problem or eliminate one possible reason for the timeout.