My brand new AR750s-Ext has an odd issue:
When I tether it to my Galaxy S10e via USB, any device connected to the router fails to access any website - except google.com and youtube.com, which work as usual. Access to any other domain gets a speed of less than 1KBps (that’s not an error - 1 Kilobyte per second) and fails to load the website for hours.
I tried it on 2 different laptops, connecting them to the Slate via WiFi and Ethernet - nothing helps.
When I tether the same phone to the same router over WiFi Hotspot, the speed is normal - but I bought it to use USB-tethering. The same phone works great when tethering directly to any laptop via either USB or WiFi hotspot.
Does anyone have any idea what can be causing this strange issue?