NightHawk R6400v2 has insanely slow Steam download speeds, but fine when connected to modem

[TonyTorzido]

I have been having issues with this for 2 years now. I finally decided to try to fix it AGAIN, and no luck. I had tried different firmware version, called Xfinity to see if it was an issue on their end, turned different settings on/off... But no luck.

Steam downloads at 15MB/s when connected to the router but goes up to 70MB/s when its connected straight to my modem without the router. My internet speed is 600mbps from Xfinity. My PC does not have a wifi chip, but speeds on my iPhone and laptops are fine.

I tried the trouble shooting provided by Steam: https://help.steampowered.com/en/faqs/view/46D2-B5B1-F0B9-B867

no luck either.

Any tips would help...

Edit: I have even purchased new CAT6 cables to make sure it's not the problem, and tried each them in different combinations with equal results. I also tried on my wife's PC and no luck. Similar issues happens with Epic launcher, but I was able to circumvent that by downloading an alternative launcher. I am confused. No idea what's going on.

[plemans]

did you factory reset? After the reset, make sure to leave qos, access control, traffic monitoring, and qos all disabled. 

Make sure not to reinstall from a backup (in case those settings were ever enabled with it)

[TonyTorzido]

I have factory reset it multiple times and have zero back ups. I have also tried disabling all the things you listed in different combinations. No luck.

[plemans]

what device are you testing on? 

Does any other device have issues?

[TonyTorzido]

I have tested this on my PC and my wife's PC. Only devices I use Steam on. Downloads from most other websites or apps are way faster.

Wifi works perfectly fine.

[wcalifas]

If you've tried several firmwares from Netgear and are ready to give up on that router you could always try third party firmware from DD-WRT. I see on the website it is supported but you have to read the instructions to upload the firmware to dd-wrt and download the files there on their website. It's free by the way.

[michaelkenward]

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@TonyTorzido wrote:

I have tested this on my PC and my wife's PC. Only devices I use Steam on. Downloads from most other websites or apps are way faster.

Wifi works perfectly fine.

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So, the PC were wired?

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Steam downloads at 15MB/s when connected to the router but goes up to 70MB/s when its connected straight to my modem without the router. My internet speed is 600mbps from Xfinity.

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What is that modem?

Did you include this in your research:

Search - NETGEAR Communities – steam

Lots of traffic.

[TonyTorzido]

Yes, this is all wired. I have tried different wires all CAT6 or higher. 

No luck still. I might just have to buy a cheaper router from another brand.