I was looking at the "View my usage" page on the Plusnet website and I noticed that there seemed to be alot of days where the numbers seemed to be really high (ranging from 100Mb to 3Gb). On alot of these days I never used the computer and it was switched off . I have a wireless connection and my network card can see several different access points in the area. Is it possible that somebody else could be surfing using my Plusnet bandwidth? I used to have an unencrypted connection but I'm now using WEP. This doesnt seem to have made a difference. Is there any way of telling who could be logged on to my access point.
I'm using NAT and DHCP on a laptop running Windows XP Pro.
Any comments or suggestions would be greatly appreciated.