@robi217 is your router the EU version? Did you just use the firmware 'as is' downloaded from the TP-link website?

5ghz now completely unusable

I'm talking about downgrading to 1.2.1 from 1.3.0, TFTP recovery from 1.3.0 to 1.2.1 sends the firmware but it just boots back up with 1.3.0. My question is, can you downgrade by first flashing...

1.3.0 to openwrt to 1.2.1 ?

@user91 It won't be 1.3.0 out of the box. You can't downgrade the firmware via tftp, I don't know why but the although the file is sent successfully it just ignores it completely and boots up with...

They've sent me an BETA firmware which has fixed the channel issue, but the performance on 5ghz is now all over the place. The hidden ssids are gone on this firmware too.