ichat problems with Netgear Router

Hi Gang.

Need some help here.
Here's one for you experinced ones...


I have a new WPN824v2 router. It's connected fine to my imac G5 (10.4.7) and my Mac Mini. Like a charm.

BUT: I can't connect to ichat.

Ichat will connect for a 10th of a second and then says: "Lost connection with ichat".

I'm sure there must be a way to do it with Port Forwarding, perhaps. But I don't know.

I'm new to this forwarding ports stuff so if anyone has any suggestions, let me have 'em in Noobesk ( or would that be Noobish?)!

Thanks much.

HV