@Mehrdad0

Hello, I got a 4g internet dongle, it connects to it separately and I use the internet, but when I connect it to the usb slot of my modem, it is detected, but it does not connect to the internet.

The modem has no USB settings and does not support any USB. When using some VPNs and proxies, it does not work properly, while they work properly in older modems.