Any rate limiting applied to the SSID? Both 2.4 and 5 GHz are working? What frequency is the phone connecting to? Download ookla app (speedtest.net) and perform a speed test and
TutuApp compare it with the laptop.
It could also be a DNS issue. The youtube app
Lucky Patcher does not use your normal dns, but it connects to youtube servers directly. I know this because OpenDNS will block youtube by not
Kodi resolving youtube.com, but the apps on phones continue to work fine...
Thank you @
Victor CenacMy issue has been solved