@Arktix 

Wired and Wi-Fi speeds depend on what the cable is giving the router. If the wired is fast and not Wi-Fi, it could be the radio on the router, if the Wi-Fi is good, but wired slow, the LAN port may be suspect. For both to be affected, it could be the cable to the modem, or WAN port on the router.

If the cable being used from the A7 is the Cat 7 swap it for the Cat 5e that comes with the A7. Make sure the router is running the latest firmware build of 190810.

Another feature to make sure to disable besides NAT Boost is QoS (Advanced > QoS).

@Tony

Ok. Tried swapping Cat7 cables with Cat5e cables and there was no major difference (Cat5e was a little slower actually, which is to be expected).

As stated in my original post, the router is running the latest firmware.

I tried disabling NAT boost and QoS as suggested. Disabling QoS doesn't seem to change anything. Besides, the PC I've been testing the wired connection on is the only device I have set up in QoS, and it's set to have top priority always.

So here's the current settings and speeds:

Nat Boost: Off

Duplex: 1000Mbps Full Duplex

QoS: Off

Download Speed on wired: approx. 165Mpbs

Download Speed on 5GHz: approx. 150MBps near the router

I'm paying for 400Mbps and if I plug my PC directly into the modem I can consistently get 400-450Mbps, so it has to be something with the router. I bought this router less than a year ago, so I should be working just fine.

Any other ideas for me to try?

@Arktix 

One last thing I would try is to reflash the firmware on the A7 with the latest even though it already has it by downloading it from our site and manually uploading it. That worked for a user that had a Archer C5400X who had the same symptoms.

If the issue persists, I'd get in touch with our support to see what they can offer.

@Tony 

tried updating firmware via download from website as you suggested. This did not help. I guess I'll be contacting support. Thanks for the suggestions.

Arktix wrote

@Tony 

 

tried updating firmware via download from website as you suggested. This did not help. I guess I'll be contacting support. Thanks for the suggestions.

@Arktix Did you ever find a solution to this problem?  I'm having a similar problem but much worse.  I'm paying for 200Mbps and get 94Mbps (pretty bad for what I pay for) download and 7.4Mbps upload directly out of my modem, but I'm only getting 8Mbps download (really bad!) and ~4Mbps upload out of my Archer A7 both wired and wireless.  I'm using CAT6 cables connected to the router.  

I found that disabling QoS fixed my problem with only getting 8Mbps download and 4 Mbps upload.  I was setting those speeds to 10Mbps and 5Mbps.  It seems to limit everything to those speeds.  The other issue is that my laptop ethernet NIC is 100Mbps so that is why it's limited to 100Mbps when I'm plugged into the ethernet.

Does anybody know if there is there a way to set QoS so that it works properly (prioritizing important devices over all other devices)?

@Arktix Did you try a new cable? Ideally Cat5E or Cat6. This solved it for me.