I have 3 computers connected to my wireless rounter. A message board banned me and all 3 computers can't access the site. How are they doing it and how can I get around it ?
They are probably blocking you by the external IP address that is assigned to you by your ISP.
Beyond that I will only say that our purpose here is not to help people side step the security measures put in place by other website administrators.
Posting twice won't get you a different answer. I've deleted the other conversation you started.
As Schnerdly said, it's most likely that the other board has banned the IP address assigned to you, probably on your home router. What SChnerdly called your External IP, and the one you see when you go to our homepage. There are posts around on how to get that IP Address to change, but if you try to use that to bypass their decision, you *could* get into even more trouble.
If a complaint is made to your ISP, they could cancel your service. Bypassing Web site security violates every customer agreement I've ever read.