I never tried 1.2.10 btw. Is there any chance 1.2.10 to have this issue resolved? I tried to downgrade to 1.2.10 from 1.3.0 via web but I got an error, is there any other way to downgrade?

@David-TP Hi, I did last night, but no luck again.

Those 3 are on Router mode.

After upgrading my home internet speed to 1000/500, I noticed that upload speed, on Access Point mode, goes up to ~300 mbps. I've tried all bands and channels with no luck. On Router Mode when...