I've been using WinGate 5 for years, very often with NAT (telnet, RDP connections, and so on), without no problem.
Some weeks ago I've upgraded my server to 6.0.2, and from that moment I'm experiencing some random lacks and shutdowns in my NAT connections. It is not a timeout problem. I'm working with my NAT connecion and suddenly, it's finished.
I'm sure it is a NAT problem, because if a make the same connection using SOCKS, for instance, all works fine. And if I make the same telnet o RDP connections directly with my router (without using WinGate), all works fine too.
The WinGate firewall is off.
Any idea?.
Greetings, Vicente.