when I updated my home router to linksys EA6500 feb 1 2013 bandwidth use increased from normal 1-3Gb/month to way over the Exede allocated 10Gb/month. 3/9, Linksys said to change SSID for 5Ghz channel - done. but Excess use continued when i turned devices back on, and wiped out another 6Gb in one day. I needed internet so I turned on a Verizon jetpac with one PC (Vista). left it connected overnight (bad) to find multiple Verizon emails/texts warning of exceeding 4Gb package; actually 8.4Gb! after buying more bandwidth, I am back to using the slowed Exede connection to do this. at least it is not costing anymore. Appears this one PC with Vista is sucking all the bandwidth/data...
Overnight 3/13, only activites on idle but connected PC were svchost.exe (predominant), msiexec.exe, c2c_service, and explorer.exe. Norton360 (recently updated) did three quick scans - clean. I used Norton360 "performance" graph to find these based on time last night. So, how do I fix this? is it an windows update issue? all are 'successful'. I changed it to manual so we can control what/when updates occur. Serious!
Jim