When my friend starts his laptop, our connectivity to Internet becomes slow

When my friend starts his laptop, our connectivity to Internet becomes slow "We have a Wi-Fi router with through which we both connect to Internet. But when my friend starts his laptop, after sometime, Internet becomes slow. Why? How should I fix this? There is no torrent or other download manager running in the background in his laptop. Operating System: Windows Vista. Wi-Fi router: Linksys"
Asked by: Guest \| Views: 310

Total answers/comments: 2

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Guest [Entry]

"According to the posting here the btdna.exe process may indeed use excessive amounts of network and other resources. The recommendation here and on other process analyzing sites is that it should be safe to stop this process. To stop it from startup, you should be able to use the utilities in CCleaner to disable the entry (directions here).
Also, as the other posters have mentioned, run a virus/malware scan just to be sure there's nothing else running around."

Guest [Entry]

Check out the network traffic on his laptop by running a packet sniffer like wireshark on it. That should tell you what is going on, but not what program is generating all the traffic. If you see lots of packets but cannot figure out what they mean or why they are there, call tech support or something like that.