I received the US Robotics modem and had trouble with it right away, even after uploading the latest driver and firmware upgrade. I called the US Robotics tech support (overseas person - very difficult to understand), and after various tests, we were able
to use the modem to call my cell phone. I was then able to dial into one of my dialup providers, and eventually able to access the internet, slowly, but that's what you expect with dialup. I couldn't send an email from the dialup account, although I can
through ethernet.
He said that the problem was due to my dialup provider, and that I should call them.
I ran the troubleshooter, and the troubleshooter said that this was an older device and won't work on a USB 3.0. It said to try it on a 2.0 USB port. I have only 3.0 USB ports on my new computer.
I tried it on 2 other machines (also set up for Windows 10), and was able to send emails out - intermittently - on 2 of my 3 dialup accounts through USB 2.0 ports. It would not send emails out through the 3.0 ports on these machines.
I thought that all 3.0 USB ports were backwards compatible with 2.0 and even 1.1. Is that not accurate? Is there any way that there is an update or some other setting that will make a 3.0 port run with a 2.0 modem?