Some spyware alters the Layered Service Provider. When you remove the malware, the internet connection may fail. Look up LSPFIX on GOOGLE and read what it does to fix the LSP.
I recently downloaded a Spyware bot, which found over 400 matches. I first tried the Quarantine/Remove function, but when it started producing errors, I just Removed all the infected files. Apparently I deleted an important file because now I can't receive information from the Internet. I can connect to the Earthlink Network (my ISP) and I send data, but my Received data does not go up. Does anyone know what is wrong or how to fix it?