Any idea who really makes this device? I realize it's Telstra branded, but I'm pretty confident they don't make it.
Uwe: Not sure who actually makes the modem, but it's supplied to Telstra by ZTE see
HERE
I've been plodding-about and I've had a look inside the modem (using the Admin facility) -Notwithstanding the zero IP that the HEX NET Config utility reports, odd thing is that the modem thinks that it's given NEX NET an IP Number (see below) when it's hooked up to the laptop in cable mode. However, when I remove the cable and run the dongle in IM, and I retry the admin page for the 4G modem, the HEX NET does not appear as a connected device - real curious!!
Exactly the same behaviour on the two lap-tops. I really do suspect that the issue is with the modem (not HEX NET) .
I'm conscious that RT has devoted a serious amount of time to this problem (very much appreciated), but I suspect that it's too difficult to solve remotely. I am content to not use HEX NET in IM with my existing 4G modem - I'll investigate the option of buying a 4G router/modem that has a piggy-back USB connection for my current modem
Thanks again for your (and your team's) efforts!
Don