Hi, I'm going out on a whim and assuming that this is potentially because of a recent warband patch that has caused an incompatibility with Native and cRPG. The 1.143 .exe is bundled with the cRPG launcher, so a few questions:
1. you're launching cRPG with the launcher, right?
2. you have the latest cRPG launcher?
Also, if you're blacklisted from quakenet webchat, does the message look something like this?
[21:51] == +++ Your IP address (xx.xx.xxx.xxx) is BLOCKED by our DNS blacklist!
[21:51] == +++ To limit abuse, you cannot use this webchat client through your browser. You can connect to QuakeNet using a normal IRC client in the mean time, however we strongly advise you check your PC or network for problems.
[21:51] == +++ This is a problem with your IP address and/or computer, this is not a problem with QuakeNet, please fix it without contacting QuakeNet.
[21:51] == +++ Alternatively, if you log in you can bypass this block (use the "log in to Q" button).
[21:51] == +++ Oblivion awaits...
[21:51] == Disconnected from server:
If so, have you tried using an IRC client? I recommend http://www.xchat-wdk.org/home (http://www.xchat-wdk.org/home)
Also, have you tried creating a Quakenet account and authing?
http://www.quakenet.org/help/q/how-to-register-an-account-with-q (http://www.quakenet.org/help/q/how-to-register-an-account-with-q)
http://www.quakenet.org/help/q-commands/auth (http://www.quakenet.org/help/q-commands/auth)
also: hou noi mou gin :P