Acer Enduro M3 5G modem WLAN 5Ghz connection does not work

Currently for some reason with Slate AX-1800 it cannot find Acer Enduro M3 5GHz SSID at all and cannot connect to it, other 4G/LTE modems work fine. Through tethering it does work, but would like to use it without tethering.

What settings does your Acer Enduro use?
Speaking of encryption, channel and channel bandwidth?

  1. You cannot set any settings from the Admin menu or user interface, only the the 2.4GHz and 5GHz password.

  2. Here is what the technical manual says.

This only info that the manual states, nothing else.

RF Channel: 2.4GHz & 5GHz: Auto
Security: 2.4GHz & 5GHz: WPA2/WPA3