Quote Originally Posted by 2manytoys View Post
Mike, it's probably guys accessing through Proxy Servers. Most cheap residential providers use Proxy servers (including transparent proxy servers). Years ago this was something TPG were doing and was causing some problems at the time. Most are managing this better but still not perfect. The people that are having problems are probably best talking to their ISP about it. Remember the Telstra Mobile proxy that was causing problems a little while ago. This happens with DSL too but it's much harder to fix (other than switching ISP's). Hope this helps. Cheers, Mal.
Yep! I've been having this exact problem. Just started one day a couple of months back. Got onto the ISP and informed them what was happening. They changed me to an unproxied IP address and access has been restored.