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The Graveyard - Products No Longer Supported => Routers / COVR => DIR-655 => Topic started by: crosenblum on November 12, 2008, 10:36:30 PM

Title: dir-655 heating issues, and greetings :)
Post by: crosenblum on November 12, 2008, 10:36:30 PM
first off, i am glad to be here, didn't know this forum existed.

Hello all....

I have a dir-655, which i use to host a website/server for a private mmorpg server, so bandwith and performance are key for me, to prevent players from lagging...

My main problems are two-fold:

1. My router seems very hot to the touch, the plastic shell especially, not sure if that's qualified as over-heating. Now I am curious about best practices, to change settings to reduce causes of this? I am using port-forwarding, and mac address permissions vs wpa encryption. And that's really about it. I am also using firmware A2 1.21.

2. Every so often, network magic, which i actually really like, show's me that the internet is off, then it goes back on right away. Which I kind of think this is all really about the router being hot or overheating...

I did have a laptop cooling agent underneath it but i am not using ti anymore. Are there better approaches or ideas to reducing over-heating? and keeping my internet on?

Thank You...

Okay my current speedtest results :

(http://www.speedtest.net/result/355119142.png) (http://www.speedtest.net)
Title: Re: dir-655 heating issues, and greetings :)
Post by: EddieZ on November 13, 2008, 01:14:16 AM
Ambient room temperature is also important, I found out also with other brands that positioning the router upright gives more airflow. Provided that the room temp is 'normal' (20 degr. C). I guess using a laptop cooler isn't a very bad idea. Also from experience (not Dlink though), when the cycle of disconnects, in conjunction with the heat, speeds up you should RMA the router.
Title: Re: dir-655 heating issues, and greetings :)
Post by: crosenblum on November 13, 2008, 01:56:17 AM
What do you mean by RMA?

And what other ways can I cool down my router?

I have this big wooden corner desk, and the router is in the upper shelf of computer tower section, above the computer.

It is open to the air, and i can get good wireless downstairs in my townhome, just fine...

But i get really worried when my router shell is hot, and my internet connection goes real flaky.
Title: Re: dir-655 heating issues, and greetings :)
Post by: EddieZ on November 13, 2008, 07:47:56 AM
A Return Merchandise Authorization or Return Material Authorization (RMA) is a transaction whereby the recipient of a product arranges to return defective goods to the supplier to have the product repaired or replaced or in order to receive a refund or credit for another product from the same retailer or corporation.

In other words: if you think the device is defective, contact customer servicce and request an RMA.

Room temp and fans are the only things that can cool it down, it has nothing to do with settings of the router.
Title: Re: dir-655 heating issues, and greetings :)
Post by: davevt31 on November 13, 2008, 09:47:10 AM
I run a laptop cooler fan underneath mine which is plugged into the USB on back of the Router.  Keeps it nice and cool.
Title: Re: dir-655 heating issues, and greetings :)
Post by: blainem on November 14, 2008, 06:24:07 AM
Just curious, which hardware version do you have?  I had A1 and it ran what I felt was very hot.  I now have A2 which seems to run much cooler. It sits horizontally on the surface of an open desk.
Title: Re: dir-655 heating issues, and greetings :)
Post by: Lycan on November 14, 2008, 08:18:12 AM
This router runs MUCH cooler when placed vertically.
Title: Re: dir-655 heating issues, and greetings :)
Post by: Wal_ on November 14, 2008, 01:14:16 PM
This router runs MUCH cooler when placed vertically.


Keep in mind, if you stand the router vertically, Antenna placement is key, especially if wireless throughput is critical for you network.
Title: Re: dir-655 heating issues, and greetings :)
Post by: Kittyburgers on November 16, 2008, 10:28:55 AM
I don't quite understand why your router runs so hot.  Perhaps it's the particular hardware version.  Mine is A3, and it doesn't run particularly warm at all; certainly not any warmer than my cable modem.  I'd try setting it up vertically, if you think you'll be able to get decent wirleless coverage in that position (I don't think vertical mounting is optimal).
Title: Re: dir-655 heating issues, and greetings :)
Post by: Wal_ on November 17, 2008, 02:41:57 PM
...I'd try setting it up vertically, if you think you'll be able to get decent wirleless coverage in that position (I don't think vertical mounting is optimal).

It isn't; Antenna configuration is critical for N (that is, if you want to achieve true N speeds)
Title: Re: dir-655 heating issues, and greetings :)
Post by: Lycan on November 17, 2008, 03:44:46 PM
Vertical mount is Optimal for both heat dissipation as well as antenna configuration.

Title: Re: dir-655 heating issues, and greetings :)
Post by: EddieZ on November 17, 2008, 03:55:11 PM
It isn't; Antenna configuration is critical for N (that is, if you want to achieve true N speeds)

Offtopic...but can you get Dlink to sell the ANT24-0230 in Europe?  :-\
Title: Re: dir-655 heating issues, and greetings :)
Post by: Wal_ on November 17, 2008, 06:22:45 PM
Vertical mount is Optimal for both heat dissipation as well as antenna configuration.



Vertical Stand:

Optimal for heat dissipation: yes

Optimal for quality: no
-Here's why: Vertical antenna configuration overlaps signal far greater than horizontal configuration.

less overlap = greater signal/connection.
Title: Re: dir-655 heating issues, and greetings :)
Post by: EddieZ on November 18, 2008, 12:55:45 AM
Vertical Stand:

Optimal for heat dissipation: yes

Optimal for quality: no
-Here's why: Vertical antenna configuration overlaps signal far greater than horizontal configuration.

less overlap = greater signal/connection.

In my  practice, using the vertical position gives the best connection quality. You seem to be more able to 'direct' the antenna range/direction . I think there is no conclusive truth about this, it all depends on your situation.
Title: Re: dir-655 heating issues, and greetings :)
Post by: Wal_ on November 18, 2008, 11:33:31 AM
In my  practice, using the vertical position gives the best connection quality. You seem to be more able to 'direct' the antenna range/direction . I think there is no conclusive truth about this, it all depends on your situation.

Exactly.
Title: Re: dir-655 heating issues, and greetings :)
Post by: tipstir on November 19, 2008, 07:47:59 PM
This is the way I runs things here.. Just have to add 16-port switch to the mix...
(http://www.mediafire.com/imgbnc.php/c8e2cbc4e29e45ecdafca59574dd929b4g.jpg)
Title: Re: dir-655 heating issues, and greetings :)
Post by: Lycan on November 20, 2008, 11:21:27 AM
Careful putting Linksys products that close to D-Link. You might create a singularity.  :)

Are you using the 655 as a AP?
Title: Re: dir-655 heating issues, and greetings :)
Post by: crosenblum on November 22, 2008, 11:00:23 AM
i have put my dir-655 vertically. I am not so using the wireless features.....

It is still warm to the touch, but not as hot as it used to be...So vertical is a solid tip...

Thank you...