I ran into some strange things using IE and my Shaw internet connection this summer. I would go to sites and would get access denied messages or it would say that I was a spammer. My wife even was denied the ability to do a Google search.
After some investigation I found the problem. I was using IE and it appears that the setup (automatically detect settings) was using Shaw’s proxy server and that was being blocked. Whenever I tried to access cbs.com I would get an access denied message. I tested this at a few client sites and saw the same behaviour. No problems when I used Firefox (recommended anyway). Going to whatismyip.com showed that my IP address was 24.xx.xx.xx which I know is wrong because I have one static and two dynamic addresses from Shaw and all three are supposed to be in the 70.xx.xx.xx range.
I find that this does not affect people with the older Motorola Cybersurfer modems either, only the docsis (small black ones). To fix the problem in IE do the following:
Open IE and click on the tools drop down (IE7) or on the tools menu in IE 6 and select Internet Options.
Go to the connections tab
At the bottom click on LAN settings
Uncheck the box that says automatically detect settings
Click OK all the way through to close the dialog boxes
I have reported the problem to Shaw technical support , but have not updated them with the fact that I have found this on other clients connections.