Hello, We have a wirless system, that was very slow. i have just made a new lead a lifted the modem off of the floor and its now fast, but drops out now and then.
Presumably you mean -- why does your computer's link to the router's wireless keep disconnecting?
You should try to optimise your reception and avoid interference.
1) raise the router above furniture level
2) Experiment with channels (some will work better or worse depending on your environment)
3) If you can detect strong neighbouring wifi, use a channel 5 stops away from strongest.
4) Relocate cordless phone base or video sender etc.
5) Be prepared to move the computer (or at least turn it so your body is not between the router signal and the wireless adapter's antenna.