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[Qev]

Well, this is annoying.  We're using a Rev. A1 (fw v 1.09) DIR-625, about four months old, and over the past two weeks or so, the thing seems to want to take a lot of breaks. 

The first symptom is, of course, loss of network connectivity.  Both wired and wireless computers will show that they're connected to the network, but they'll be able to access neither the internet nor other systems on the LAN.  Disconnecting/reconnecting or repairing the connections seems to proceed normally, the computers will reconnect and be assigned IP addresses via DHCP, but still no connectivity.

Even worse, the router configuration page becomes inaccessible, even to machines using a wired connection directly to the router.  You get your bog-standard "Page cannot be displayed" message.

The only fix for this seems to be to power-cycle the router.  I re-flashed the firmware to 1.09 in the hopes that it might correct any sort of mild corruption going on, but no luck.

The computers on the network are a mix of Win XP SP2 machines (using wired connections or D-Link DWA-542 wireless adapters), several Macs running whatever their latest OS is called (I break out in hives if I touch those ), and a Nintendo Wii.  The network is using WPA-Auto encryption, and no, I'm not going to disable it.

Any ideas?

[JonClaud]

For test purposes, I would disable the wireless in your router. Now you will only be able to use the computers that are hardwired. Monitor to see if the router still locks up. If it does than it is possibly a defective router. If it does not than you know it has something to do with the wireless side or more likely, some wireless interference.

[Qev]

I would, however the problem isn't predictably frequent, such that disabling wireless on the router would leave six out of the seven computers here with no network access until the problem decided to repeat itself. 

Something tells me this is going to be a pain in the butt to pin down.  Maybe I can try it when everyone else is asleep/elsewhere, and get lucky. 

[Qev]

Huh, that was quick.  I left it with the wireless disabled overnight (well, part of the night), and it was doing the same thing this morning... with a slight difference.  That being that I could log into the device, but it was painfully slow, took several attempts, and all of the pages looked kind of like this:



Ie. none of the graphics and formatting were loading.  Once or twice it also gave an error along the lines of "unable to complete your request as the network connection appears to be down."  It's like the thing is getting swamped with network traffic, even though nobody was using it (and there was no activity on the DSL modem).  Weiiiird.

Edit:  Oh, this just gets better and better.  It's locking up on average once every half hour, now.

[Qev]

Well, pinned it down -- it's bittorrent.  Or rather, the D-Link router can't handle large numbers of concurrent connections involved with bittorrent, and has a mental breakdown.  This is probably the last time I bother with D-Link hardware, honestly.