Dell TrueMobil wirelss network performs inconsistently...

My friend has an older Dell desktop, a new Dell laptop with the TrueMobil wireless network card and a Dell wireless router.  The desktop is hardwired so no problems there.  The laptop seems to always indictate that its signal strength from the router is excellent.  However, actually connecting to the internet is 50-50.  Can't figure out how to be able to consistently stay online.  I'm not that familiar with this hardware so maybe someone can shed some light on this issue.  Thanks.
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wec012299Asked:
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qwaleteeCommented:
Is it still 50-50 if he has the laptop right next to the wireless router?
wec012299Author Commented:
Have not tried that.  Supose it does get better though, I guess I wouldn't have any other choice but to move the laptop closer, right?  What if it doesn't make a difference though?  Could it be some kind of "time out" option from the router?  I'm just not familiar with Dell routers.  
qwaleteeCommented:
Dont know much about Dell routers either, except that I am SURE they are rebranded from Linksys or D-Link or SMC or USR or somebody else.

Timeout is unlikely.  More likely is interference from flouresecents or a microwave, a cordless phone, anther nearby AP, or jst possibly a defective router.  Or for that matter, a defective wrieless NIC in the laptop.
ihaveregisteringCommented:
A lot of routers allow you to use a slower speed than it is capable of to increase the distance a signal can travel.  This may help you if you are having outages.  I have a dlink 614+ and I disabled the 22mbps option and now it works great all the time.  Although I did lose some bandwidth, my connection to the internet is only 1.5mbs any way, so I notice no different when accessing the web.

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