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[Ascaris]

Hi everyone,

My DIR-825 A1 runs so hot during a throughput test over wireless (Tamosoft client running on the laptop wirelessly; server running on desktop over gigabit wired) that the router spontaneously reboots within minutes.  If I take the router's cover off, it appears to be better... so far, no reboot.  My infrared thermometer tells me that the CPU and switch controller are steady at about 57C, while the wireless chip of the top card is 52C.  These temps seem really high to me... that's with the cover off!  There is hardly any ventilation with the cover on, so it is far hotter, and not surprising to me that it reboots itself.  The router feels very hot after such a test... the bottom especially. 

Even when it is mostly idle, with my wireless laptop and wired desktop (both Windows 7) just sitting idle (just doing background things), the plastic case gets very warm, much more so than the case of my Netgear WNDR3700.  With the cover off, the CPU and network switch are cooler than during the throughput test, down in the low to mid 40s, but the wireless chip is still about the same.

It would be fairly easy to cut a hole in the top cover and install a case fan, but should it be necessary?  Surely D-Link would not release a router that runs so hot  out of the box that it reboots itself doing a throughput test (which is limited to the speed that is possible over the wireless connection)! 

It works, though... other than the rebooting under heavy load, it works quite well.  It does everything it should: wireless connections don't drop, and everything is quick and smooth. 

It has completed 20 minutes on the throughput test with the cover off now, and it never made it past 5 at the most without rebooting before, so the reboot does seem to be heat related. 

The 825 is pretty old (I bought it not long after its release), but it has not been used in a long time.  The capacitors inside are not bulged.

Is this amount of heat normal for this router? 

[FurryNutz]

Link>Welcome!

• Link>What Firmware version is currently loaded? Found on the routers web page under status.
• What region are you located?

I presume stress testing the router may not be needed. Might want to install a laptop cooler. Whats the inside look like?

[Ascaris]

I'm running 1.14, North American region (USA).  I am using the A band at 240-300 mbps (it floats around in that range).  The BG band radio is only on because my Samsung tablet doesn't do 5Ghz, but the throughput is minimal.

The inside looks pretty good... it's relatively clean and free of dust, and no signs of any damage. 

I was not running the throughput test as a stress test, per se, until I took the cover off and did it again to see if the rebooting would recur. I have been having sporadic wireless throughput issues with my laptop's Intel 4965AGN wireless card, where it periodically slows down (greatly) with alternating periods of 100% packetloss that last a couple of seconds, then a couple seconds of working, then packetloss... repeating until I reboot the laptop.  It does it with my other router (the Netgear) too, so it's not the D-Link at fault.  It was during testing to try to work that problem out that I did the throughput test and discovered the heat-rebooting.

Thanks!

[FurryNutz]

Let us know if you see other issues. If you do use the 825 as a router, might use a laptop cooler to provide some additional cooling. Might test the router in wired AP mode too and see how it does.