A Windows XP system while apparently doing nothing has Internet traffic received and transmitted about 15 meg every 30 seconds. That was what it showed on the NetComm NB6 ADSL2+ Router Traffic Statistics. It was discovered when the data usuage has gone up lately without apparent reason. One day after browsing on the Internet for about one and half hours without any file download, the data usage log went up to 1.5 Gigs. The Windows firewall is on without any unusual exception. The Norton Antivirus and Antispyware has been running on the computer for years. Everything is up to date. the netstat -nao does not show any suspicious connection. The msconfig and task manager do show quite a few things running. However I can’t see any process or application could have incurred such traffic. There is no wireless connection. Only one computer is connected to the Internet.
Could it be something wrong with what is on the ISP side or the modem/router? The problem seems to have started to happen when the modem/router was replaced.a few months ago. How could the modem/router cause such problem?
