PC reboots after receiving fax

[Herb Bergman]

Last week we downloaded "log me in" so the physicians in our group could access charts using WIFI. Now everytime a fax comes in, as soon as it begins to print, the fax clicks, the router buzzes and the computer reboots.So we plugged the fax into a separate power line but the same phone line. Problem continued. Disabled "log me in" but computer still rebooted after fax began to print. The only difference is the router did not buzz. Can anyone help us?