My modem suddenlly restarts some times, when I'm using Windows Live Messenger, but it's totally random. The modem is a Siemens SpeedStream 5200, and I'm sure that WLM is causing this, I've tested a lot. Usually, WLM uses about 100% of the CPU before the modem goes down, but I'm not sure if this happens every time the restart occurs.
This problem used to happen every time I closed uTorrent, and I managed to fix this by unchecking the option "Enable UPnP" in the settings.
A Kaspersky Virus Removal Tool Log is attached to this post.
Thanks in advance.