Two of my computers picked up Trojan malware. Malwarebytes apparently cleaned both but now they are operating differently. I have the paid version of MB with real time protection. My laptop now runs without a glitch including no, none at all, IP blocking in the browser. However, whenever I connect to the internet with my browser on the desktop I get an immediate IP block on 91.212.226.42, which is somewhere in Russia, and frequent blocks on other IP addresses. This is not an accident, the 91.212.226.42 address appears immediately, EVERY time, I enter the browser. One computer is a laptop, the other is a desktop, both run Windows XP Pro, both use Firefox as a browser, both are protected by McAfee and Malwarebytes. Both computers connect to the internet through a Linksys router, the desktop by wired LAN and the laptop via wireless. It does not seem possible that one computer is continually hit by IP blocking and the other has no activity at all. I would greatly appreciate opinions, Thanks.