unable to connect to xat chat via home ISP

[autopathography]

Hello,

I am unable to connect to chats hosted by xat.com via my Comcast (home) service. I am able to connect to chats via other ISPs, using the same machine & settings. Other members are able to access the chat.

When I attempt to connect at home, I get an xat error message that reads: "Connection Problem. You could try to start the chat again. Sorry (F)."

Things that I have tried:

Turning off firewall
Adding xat.com & xatech.com to list of trusted sites
Turning off "Protected Mode" for xat.com
Downloading updated Flash
Allowing unlimited storage for xat.com in Flash
Attempting to access via latest versions of IE & Firefox
Clearing all browsing history ("Private Data," cookies, temporary internet files, cache, etc)
Clearing DNS cash
Resetting modem

Do you have any ideas or suggestions?

[autopathography]

Hi ACK,

I sent you a PM with a link to a specific chat that I want to access, but I can't connect to any xat chat from home.

Ideas?

[autopathography]

Just in case anyone else has this problem... it was the router I started using with my new ISP. It was not allowing the ports 10000-10100; I changed the settings to allow these ports and can connect now.