Can't set up Dial-up connection; no modem connected.

I have a 3G USB modem that I use to access the internet. This is some Huawei device, and I have it installed all correctly. The device manager shows the device under Modems as Mobile Connector. It seems to be working fine and is responding to AT commands. This device is also listed in Phone and Modems and is at COM6.
But when I try to set up a dial-up connection, the dial-up dialog box says that no modem is found. Interestingly, if I put Windows to sleep, the dial-up system can find the modem after waking up and I can connect to the Internet. However, when I restart, the connection can no longer connect apparently because the modem is removed.

I suggest that you uninstall and then reinstall the modem driver.

Also, can you do anything, such as fax out, with the modem?

I assume you don't actually dial up which may be the problem doesn't it come with software to connect?

You said that it is 3G. That would imply that it is not dialup. Are you sure this is a dialup modem?

Do you have a standard analog phone line to connect it to? If it's dialup, but you don't have an analog phone line, a dialup modem is useless.

Whats the model number of the modem most either a hotspot or usb