Most 3G modem dongles cannot be plugged into an Android WiFi Tablet even if it has a USB port. This device gets around this by allowing any WiFi device to connect to a 3G modem dongle or LAN cable that is plugged into the MR3020. A USB power-cable and wall socket adapter is supplied, so as long as you are near a wall socket or a USB port you can use it.
On power-up the WiFi started but it was not connecting to my 3G modem dongle. Logged onto the router configuration [...] as saw it was trying phone networks one-by-one, starting in Singapore. Used the drop-downs to select UK and then my phone network (Three), saved the settings and rebooted and it connects quickly.
Then used the configuration to change the default login and username, SSID name and enable WAP security/password.
Also changed it from 3G ONLY to 3G PREFERRED (so it will try to connect to the internet via a LAN cable if the 3G modem is not plugged into it). Popped my LAN cable into it and it worked fine.
So I can now connect my Android Tablet, phone and Laptop PC using the MR3020 WiFi to either my 3G modem dongle or LAN cable network.
Good signal strength when it is nearby, as this sort of device normally would be.
Very useful - Small, light, easy to set-up and use.
Check your 3G modem dongle is on the supported device list.