Very low upload rate over 5Ghz WiFi

[Etherknight]

Hi,

My ISP gives me fiber connection that is 300/30 Mbps. When connected by cable, the speed is almost that, but when connected through WiFi 5GHz, the download is high as expected but the upload is almost 0. If I switch to WiFi 2.4Ghz the issue doesn't happen, as the upload is 20 Mbps as more or less expected.
I had the same issue in previous firmware versions, R083 I think, but it is reproduced again in latest release R085. Usually I roll back to the working firmware R069, but I don't have it anymore and it seems not to be available online.

I'd like to have R069 firmware if possible. Let me know what kind of logs are needed to debug this issue.

Best regards,
Miguel

[Ashok]

@ Etherknight,

Try to change the channels and the width, then check the status. As a last resource, please do perform a factory reset and let us know the status.