Exo, thanks for the link, I will read it when I have a bit of spare tiem. The modem does not lose the settings to often, it has only done it I think about 3 times this year. I used to reinstal the driver but it did not appear to alter the frequence of failures. Reinstallng also loses the connection settings to a second PC using mine as master to connect to the internet. Don't ask me how, a local expert set it up for me. So restore is the easiest way to get back to normal operation...
Thanks again for the assistance..