I have an E3372 4G USB modem, which has been working well on my Windows 7 laptop.
Unfortunately my laptop died a couple of weeks ago. I have replaced it with a Windows 10 laptop (HP Elitebook 1040 G4) and also tried it on a Surface Pro 4. Bothe devices running Windows 10 x64 1903.
When I plug in the E3372, Windows recognises the portable drive that contains the installation files, but it doesn't recognise the modem. Device Manager shows no change to the networking components. 4G connectivity isn't available, and 192.168.8.1 (or 192.168.1.1) aren't accessible from a browser.
I believe this has been an issue on previous Windows 10 updates. I can't find a fix anywhere.
Since the E3372 is still a current model and is on sale in local shops, is Optus looking into a solution to this?
So did you get the Optus software installed correctly?