Supply the following information please.
OS running on all affected systems
Make\models of all equipment (routers, network cards, modems).
Wired or wireless?
What wireless encryption is in use?
Browsers being used (Firefox, IE, Safari, Opera,...)
What security software is installed?
Open up a command prompt (Start > run > cmd)
Type the following bolded commands and post the results for each affected machine.
Note: To post results of commands, alternate click on the top of the command prompt > edit > select all >
alternate click on the top of the command prompt > edit > copy > paste in a message here. If you are on
a computer that can't connect to the internet then paste the contents in a text document and save it to a
portable media like a flash drive, then use an internet capable machine to post the contents.