wireless keyboard intermittent signal

keyboard only works at startup. i'm also having a problem with wireless lan, don't know if that is related or not,
both problems are new issues.
both use a usb adapter
new build in 2012
win 7
intel celeron cpu
430@1.8 ghz 1.81 ghz
4 gb ram
64 bit
867 gb free on 1 tb hdd