Hello, I replaced my existing Linksys router / mesh network with TP-LINK Archer BE550 | BE 9300. Wifi works perfect, wifi coverage is perfect as well. Before I had mesh network to get normally coverage in the flat, but with this router no need extra access point mesh device. But there is issue with USB attached NVME drive. Upload speed to drive is so bad. I had before Airport Extreme Time Capsule, Linksys Router with attached USB NVme drive and it took max 15 min to upload file. So why with TP-Link takes 1 hour and more?

P.S. Does TP-Link support works? I tried to contact support via chat and Agent is deactivated only left with option forum or manual.

UPDATE: So I tried via Ethernet cable and to upload file to USB drive took me about: 20 approx 25 sec. And speed between computer and phone using cable is I can say 1Gbps.

UPDATE!!!

Ok spending some time I started to look where could be issue. First I disabled everything what is releated with Hyper-V. Unfortunately didn't changed speed or even wifi didn't work. Then I removed Hyper-V feature and here solution comes. Transfer speed changed drastically. Not so good as it was via Ethernet but 200x times better. Next I enabled back Hyper-V and as I expected transfer speed went back to 400Kbps transfering files to USB drive. And here comes few things what need to change.

So we have to go Setting > Network & Internet > vEthernet (Your Virtual Switch Name (Hyper-V) provided) > Edit.

Now we have to configure vEthernet.

So we have to change four things from enable to disable. Look in the screenshot bottom.

Now speed is much better but still not perfect. Maybe I'm doing something wrong but this partly fix the issue.