My WRT54G v5 router loses internet connection frequently

My WRT54G v5 router loses internet connection frequently. Sometimes occurs when you enter a web or sometimes every few minutes, but without a pattern. I have W XP Pro with SP3 and I have a pc wired to the router and sometimes 2 notebook with Wi-Fi. What could be the problem?. Thank you very much.

I have upgraded the firmware to v 1.02.8 and reduced the MTU to 1350 but after a few minutes of doing that I had the same problem... The router reboots itself, again and again and again...
It's possible to run some diagnostic utility that somebody can check ??
It's possible it would be a router failure ??
I note that sometimes is ok and when Entering some web pages the router reboots itself and I loose my internet connection, but others, the router reboots for no apparent reason...
I dont know what to do...

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We recently switched from a WRT54G to a WRTU54G-TM router from T-mobile and the new router seems to randomly lose our internet connection and needs to be restarted to regain it. It could be coincidence but this has happened a couple of times immediately after using our VoIP phone connected to it. I tried switching back to the old router and everything worked fine once again. Typically with the WRTU54G-TM it will stay connected for about a day or so and then it will need to be restarted. Although sometimes it will need to be restarted multiple times in one day. Just curious if anyone had any quick suggestions or setting configurations that I may have missed?
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I just added the T-Mobile@Home service and set up a WRTU54G-TM this past Saturday. During the first 4 days, the blue light on the router went out and I lost phone service - until rebooting the router each time. Phone service returned about a minute after rebooting in each case.
I did NOT lose Internet service while phone service was down.
I reached T-Mobile customer care the second time, and the rep I spoke with mentioned that she had a couple of other calls similar to mine earlier in the day. So far, the reps had no official word regarding this problem, and the word going around was simply to tell people to reboot their routers.
Tech Support had about a 20 minute hold queue, so I didn't yet to speak with a technician.
The phone service has been up for the past 2 days -- curious to see how long it holds up this time. Also checking the Linksys site regularly to see if new firmware (beyond the 1.00.04 I have loaded) becomes available - maybe that will address the problem.
When I complained to customer care, the one thing they did was to extend my "buyer's remorse period" to 30 days (instead of the usual 14). So I plan to hang on for another couple of weeks to see if this gets straightened out. I love the service, sound quality and price. Hoping it works out - I want to keep this!
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Hi emma22
Here is a document for Getting the Latest Firmware and Product Updates.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02979046&cc=us&dlc=en&lc=en&os=4063&product=507...
I checked and there is no way to turn off the sleep mode on this model.
I included a document for Printer Does Not Maintain Wireless Connection and to try Solution three: Assign a static IP address to the printer. You will need to get your It department most likely to set this up for you if you don't have full admin rights.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03678348&tmp_task=solveCategory&cc=us&dlc=en&la...
Hope this helps.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

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My WRT54G v5 router loses internet connection frequently

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