WRT530N recently started to drop Wireless Signal when wired computer boots

In the last week or so the wirlessly connected computer sees the wireless signal (WMP300N card) drop whenever the wired computer is booted. Looking at the router one can see the wireless light go off briefly. The Wireless computer, XP SP3 is the one effected, so I opened the WIRELESS NETWORKS and I can see it go from CONNECTED to ACQUIRING ADDRESS.
We've got a wireless printer, and HP, and it too seems to be effected, as it rings a chime when it connects.
I've had it drop with all computers off as well, or even all on, too recently.
Is the router 'dying' or do I need to re-flash it (it has the latest), or reset to original defaults?
Suggestions?
Thanks,
Irv S.

lordstag wrote:
You are not understanding. Just because the link is at 270 mbps, does not mean you are actually getting that speed.
The whole 2.4 spectrum is only 60 mhz. 40 mhz uses bonded channels which means it is subject to 2 times the amount of interference as 20 mhz. It is using 2/3 of the 2.4 spectrum. So if there are any other wireless networks around, or wireless devices that use that spectrum you will see a dramatic loss in speed, but not necessarily the link it shows.
While it may show a link of 270 mbps, it may only be using 10mps due to interference.
I do understand that. I've run InSSIDer and checked what is also in the area. I see only 2 other SSID's, and both are very weak. Live in single family homes here. I would think most of my neighbor's are not techies and wouldn't hide the SSID's. Only one of them isn't a default SSID as well.
I've checked the speed between my Gigabit wired and my wife's wireless when copying files via Windows explorer. Moving at the rate of about 20 - 25MBps, here machine is only 10 feet from the router. Lowest speed is about 12MBps at times. Depends on the drive on here machine, RAID 0, standard or external. Could be the disk speed that is the limit here, not the connection.
Checking the iPad, it showed 20Mbps with and without the 40Mhz channel, that had no effect on it?
My other router, the ASUS RT-N56U is due back from Repair today. I'll be putting that back and we'll see if that fixes this problem? If it does, I'm going to RESET this LinkSys and put it back and see what happens. I'll try relashing it too if necessary.
Thanks,
Irv S.

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