@Mike4 

Based on the specs found on-line and your reported needs, either should work for you. Each has interesting differences going for it.

If you have AX devices, plan to get some, and want to be a bit future proof, I would lean more to the AX50 because it supports AX (WIFI 6).

On the other hand, the A20 has 2 USB ports and seems to be designed to cover a larger area.

If it were me, I would chose the AX50 as it appears to be the newer router (see when the firmware was last updated).

@Mike4 

I agree with @ArcherC8 on this one.

I've got the A20, excellent router. Really like it.

Here is a TP-Link comparing the 2, https://www.tp-link.com/us/compare/?typeId=9&productIds=34810%2C41319

There are 2 basic differences to me:

1. One is AX 6 Wifi speed and the other AC 5 Wifi speed.
2. One is a dual-band router and the other is a Tri-band (dual 5Ghz SSID) router.

Depending on your future needs, one might suit you better than the other.

Tri-band will handle more devices BTW, but Wifi 6 is the future now.

@ArcherC8 

Thank you for the info, I appreciate it and your recommendation of the Archer AX50. I've got about a 2,000 sq ft two story house and just want decent coverage throughout with some coverage to my back deck. There is no more than probably 3 walls between the router and farthest room. Most rooms have 2 walls. I'm not looking to stream 4K in every room or game online from every room. So, hopefully the AX50 should work well.

Thanks Again

@Mike4 as an AX50 owner, I would'nt go for the AX50. No firmware update for more than one year, no WPA3, no mesh, heating pbs, etc . AX20 seems to be a better choice

@Ben78, @Mike4 

A20 has a few version of f/w, but I'm on V1, F/V V1.1.1 from 10/26/2019. The only other H/W version is a V3, and it has no new F/W either, It has Archer A20(US)_V3_191026 which it seems is what I've got, the A20 V1 initially had Archer A20(US)_V1_181122  as the F/W, and now what I have, Archer A20(US)_V1_191026 so it seems TP-Link isn't updating it fast either.

I have good coverage with the A20, single floor house, over 2,000 sqft, but that really doesn't mean much or translate it might be good for anyone else.

To me, the Tri-band which allows more devices to connect @ 5Ghz is the deciding factor. Note that 5Ghz SSID's deteriorate faster than the 2.4Ghz SSID. See https://www.alternativewireless.com/resources/wifi-networking/5ghz-vs-2-4ghz-wireless-lan/5ghz-wifi-disadvantages.html for details.

Also keep in mind, you'll probably need and AX router to reach full speed. Also AX network adapters.

I suggest you read this page too, https://www.duckware.com/tech/wifi-in-the-us.html. PHY speeds or Connection Speeds is not the same as the Throughput speed with can be 1/2 the PHY speed.

Hi @IrvSp, I have no more issues since I switched to an Asus router which is working perfectly and which is updated very frequently, including many security fixes. No more TP Link product for me, even for free...