High Volume makes network crawl

blairmahaffy

Honorable
Mar 6, 2014
7
0
10,510
We just installed a new DLink DIR-810L AC750 router which is working great... until I put load on it.

On my Win 8.1 laptop, when I put a good load on it such as copying files to a backup on the network or running my VOIP phone via my laptop's wired port, the network slows to an absolute crawl (I thought it was the VOIP at first but it does this even with it disconnected)

The Windows network indicator doesn't show a problem and says Internet Available but apps time out all over the place.

To fix it I have to disconnect from the router and then reconnect and it works fine.

But it is 100% guaranteed that if I put any kind of load on the connection it shuts down to an absolute crawl!

Other computers on the network seem to be having trouble streaming Youtube and stuff like that; tends to stutter a lot more than our old router (they aren't always on when this is happening to me so it isn't because of them)

Any ideas would be appreciated! :)

Edit: I just want to add that I tried to upload a video to Youtube -- big volume right? About two minutes in to the upload the internet on my computer dropped and my VOIP phone (which I now have connected hardwired to the network and not through my computer) also dropped off the network.

I disconnected and reconnected from my laptop and the internet came back up, on the VOIP phone too. So it recovers easily but reliably (if that is the word) fails when there's a sizeable load.
 

blairmahaffy

Honorable
Mar 6, 2014
7
0
10,510
I'll just add to this that I did a simple test and copied a 20 MB file across the network from one computer to another. In Win 8.1, where I can see the transfer rate, it started fast, dropped over a second or two down to 0. At that point I had no connection to anything and had to disconnect and reconnect to the router.
 
You either have a bad port on it, or a bad cable or network card in the works somewhere, or the router is simply bad. Try with combinations of ports and computers/cables. If you try different things and it does not work with any configuration, contact DLink for a replacement.
 

Beachnative

Honorable
Jan 25, 2013
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11,060
Try running your tests with your computer running in safe mode with network support. Then test by sending data from computer to computer and remove your backup device from your network. If the tests show no significant improvement then I would think it is the router.
 

gmanden

Reputable
Mar 24, 2014
1
0
4,510
You have to make sure your wireless card supports the 5 ghz band ...if u choose to use the way more congested 2.4 ghz band u will not expierience the full bandwidth.

U could use the DWA-171 usb adapter for a better result