I'm helping a small office with a server and 4 computer, they have been over their network usage for the 3rd month now, however, we can't find why the usage suddenly gets to high last 3 month. here are some data:
month of dec: daily usage was between 30mb to 90mb
08 jan: same as dec, 30mb to 90mb
08 feb: starting feb 6th, daily usage went up to about 300-500mb per day, all the way up to now.
Even on days with only 1 employer (the manager himself) the usage was about 400mb and he only checks email. I've checked all 4 pcs are clean from spyware and virus, no download program , no games installed.....I even installed Netlimiter to track the usage on all pcs but the number is very low, anyone has ever came across this kinda of problem? Also the ISP says 90% of the usage were download and very little upload. I don't see any unusual services running on server as well but the usage is still very high. Any one has any suggestions on what to do?
month of dec: daily usage was between 30mb to 90mb
08 jan: same as dec, 30mb to 90mb
08 feb: starting feb 6th, daily usage went up to about 300-500mb per day, all the way up to now.
Even on days with only 1 employer (the manager himself) the usage was about 400mb and he only checks email. I've checked all 4 pcs are clean from spyware and virus, no download program , no games installed.....I even installed Netlimiter to track the usage on all pcs but the number is very low, anyone has ever came across this kinda of problem? Also the ISP says 90% of the usage were download and very little upload. I don't see any unusual services running on server as well but the usage is still very high. Any one has any suggestions on what to do?