My Huawei Mate 20 Pro connects to my Super hub 3 but intermittently has no internet. There is still a connection to the Wi-Fi and a full signal, but the Wi-Fi has an exclamation mark next to it and says no internet access. This is the only device that I am having issues with, but the device works with every other Wi-Fi signal I connect to.
I have 'forgot connection' and started again.
Restarted the Super hub.
Changed channels via the Wi-Fi settings page.
Changed the phones' connection to the hub from dynamic to static.