Using ROOter on the GL-X750

Technical Support for Routers
4

In case anyone’s interested:

I was able to get my unit working with ROOter, thanks to some helpful folks on the Whirlpool ROOter thread.

The key is to switch the router <-> modem (EP06 in my case) communication protocol from QMI (the default) to MBIM (an emerging standard supported by Windows).

There’s a problem with the current ROOter release (for the Gl-X750) which, in QMI mode, stops it communicating on the internet once it’s connected to the 4G network. The “Network” part of the main “Status” page will show no WAN IP4 address, despite the “Network Status” page (“Modem” section) showing a radio connection to the 3G/4G WAN.

Hopefully this will be fixed in the future. Until then, switching the modem to MBIM mode sidesteps the issue. To do that, issue the following AT command and then power cycle (a reboot is not enough):

AT+QCFG=“usbnet”,2

You should now see “Protocol: MBIM” on the “Network” part of the main “Status” page, and you should be able to access the internet.

This change is sticky. Power cycling, rebooting, flashing, and resetting the config won’t change it.

To return to QMI mode, repeat the above command (and power cycle) using 0 instead of 2.

Please note that:

  1. the stock GL firmware does not seem to support MBIM mode. If you reflash your unit to stock, you’ll have to return it to QMI mode for it to work on the internet.

  2. this has been done with a sample size of 1 - my unit, and my unit has had many problems (as described elsewhere). It’s possible that ROOter will work out of the box with other units.