Hi Glenn.
Have you confirmed that the windowz firewall is off?
Nope.
Also no.
Umm no, I think. Dell would connect via 192.168.0.4:21000
Err, no your router is acting as DNS proxy, it resolves local name lookups by querying the DNS servers [i[it's configured with[/i]
Only so far as lag/playability are concerned, as this determines the packet scheduling for clients....when it's a server.
You can join hosted games OK? So it's not that there is more than one network interface configured?
Double check the IL2Setup network tab, and ensure it is using the right interface/address.