Have recently installed mIRC v6.16 on a new PC running Windows XP, it worked fine until I installed a Belkin ADSL Modem with wireless router, now I'm getting the following error message:-

[11:44] Ping? Pong!
Your username is invalid.
Connect with your real username, in lowercase.
If your mail address were foo@bar.com, your username would be foo.
[11:44] Closing Link: ******* by Oslo2.NO.EU.undernet.org (USER: Bad username)

The username wasn't changed in mirc at all - so am assuming this is something to do with the modem//router - especially as it's happening with all pc's on the network.

The same problem occurs no matter what network I try to join.

Any help in configuring this would be greatly appreciated.