My ADSL router is also using Conexant chipset.
Unfortunately I have the same problem and have yet to find a working solution.
Discussions of this problem has been underway for years, but still I cannot find a working solution for this.
Some suggested though that I change the default port to that other than 6667. However, that's completely useless in my case.
I really must get resume to work!!! Please, someone do help us on this...
May I know if this problem is specific to Conexant-based routers?