@jake26 Try the driver in the post here:

Archer TBE550E won't connect with 2 channels on MLO network - Home Network Community

It is newer then anything posted on the website and made it so my adapter connected with 2 channels.

Both my laptops are Intel based.  Can you tell on the compter you are connecting to multiple bands?

  @skiingj when you go to the wifi settings on the computer, it will show you what frequencies you are connected to.  With the MLO settings it will show 2 of them if it is working correctly.

  @DVair can you show screen shot?

  @skiingj yes i am going to show you with a screen shot.. this is intel base running windows 11 24h2 built and wifi card intel be200 with latest drivers, you can see on the very bottom is says its connected to 5ghz and 6ghz band at the same time.. if it was a single band either 5ghz or 6ghz would show, but there are two bands there.. i can see it connected to 2 bands as well on my tp link deco mesh system under connection preferences in app.

  @DVair i downloaded the newest driver from this forum and still connecting to only 6ghz band it did fix the issue where it was favoring 5ghz band, i had to force connect to 6ghz band... still only connecting to only one band though.

  @jake26 system is not on right now but it connects with 2.4 and 5.  It is pretty far away from router and has a floor and a couple of walls between.  So pretty happy that it connects as it does.

  @skiingj 

There seems to be two driver versions but with different model number.  Anyone know why?

Archer_TBE550E_V1_Aoturun_2024914

Archer_TBE6500UH(US)_V1_5002.24.117.3_Win10_Win11