Wireless keeps disconnecting, CF-29

A little help please.
My cf-29 keeps disconnecting from my wireless.
None of the other computers in the house do this so I'm guessing it this unit.

Every wireless network near me is secured, so I don't have the option of trying to hook into someone else's network to see if it's mine.


I replaced my wireless router about 2 months ago, because it went TU.
But this problem started about a week ago

Any help on trying to diagnose/repair it would be greatly appreciated.