Some questions

[Tezcatlipoca]

Originally Posted by MovedGoalPosts

The IP addy that is seen by the internet, and thus the one that you are getting banned by it that allocated by ntl's network to your Cable Modem, Or Set Top Box. Whatever you do or change to any equipment that you have behind the modem/STB will have no effect on the IP addy the internet sees. Thuse wiping and reinstalling your PC would have no effect, similarly changing MAC addy of a router or replacing a network card, has little chance of success.

Changing the MAC address of the device connected to the SACM/STB (e.g. the PC, or router, or whatever) can cause an IP change (as the DHCP server would see a different MAC address - a different device - connecting & asking for an IP).
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Also, some info on IPs here: http://homepage.ntlworld.com/robin.d...dhcp.html#long

[Calum.W]

I've installed a firewall, and IRC is working fine.

[MikeyB]

Originally Posted by MovedGoalPosts

ntl's network, presumably operates like most networks, with an IP "lease" allocated for a period of time, often 24 hours, sometimes longer, rarely shorter.

Just out of curiosity, taken a look at my ipconfig /all
The lease I have is for 7 days...