Hello, my turn to post a message 
I've recently noticed that my Huawei WiFi Cube 'disconnects' whilst downloading larger files, such as updates.
Specifically downloading files stop, no web pages open and the Network connection is marked with the yellow exclemation mark in Windows (10) showing no internet connection.
This only appears to happen when downloading a relativly large file ~500MB or more. I'm using the Ethernet cable to my PC.
After about 30 seconds or so this fixes itself, but kind of sucks to have to redownload files (when on a limited allownace)
Regards,
Alan