home wireless connection issue

According to a client, their wireless network connection times out after 3:30pm everyday.  This also occurs when too many connections are active.  

Lastly, how can I verify if a wireless access point is flaky or if it's a wireless card issue?  
vulture714Asked:
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ChiefoftheChissConnect With a Mentor Commented:
I'd go onsite with your laptop and their laptop (arrive @ 3:15) and a 3rd desktop or laptop connected to the wired network
Connect 2 laptops to wireless
setup ping to 8.8.8.8 (start cmd > ping 8.8.8.8 -t) on all
setup ping to 192.168.0.1 -t (assuming that is their access point address) on all
setup ping to router IP if different
(a useful tool to visually see the effect of network traffic loss is pingplotter btw (if you go this route you will still want to setup a ping to the wireless AP as it won't see that as a hop usually)
look @ watch
sip coffee / beverage of choice

Assuming here you have a laptop and a known good wireless card in it, and the desktops wired connection doesn't fail you should see some differing results:

-both laptops time out pings @ 3:30 = Bad AP (or possibly other factor - school kid that is "borrowing their connection" gets home and starts watching his "online entertainment")
-their laptop @ 3:30 = think about wireless card on the customers laptop
-nothing happens = kid's mom is home and he can't watch anything... = change WPA key etc.

-ping loss to router but not AP = check router (same if fail anywhere else up the line)
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