Sierra/netgear Aircard 770S Error connecting to server

[lindajane]

I am trying to unlock an AT&T Sierra/netgear aircard 770s but keep getting an "error connecting to server"message under the check account status. I have tried all the suggestions in the tutorial with no success. Every time I connect the modem via a usb I lose the internet connection as the non working modem tries to take over. I am in Canada so the live help hours are all wrong for my time zone so any help greatly appreciated.

[lindajane]

Woohoo, have managed to unlock it. Now just have to see if it will support a Rogers sim?!

[Valdemaras]

In this case for future reference first thing to check would be adapter bindings https://www.dc-unlocker.com/adapter-binding-settings
If it gives no positive results, then you should do metrics:
control panel > network and internet > network connections > Right click on your device that you want to unlock connection > Properties > Internet protocol (TCP/IPv4) > Properties > Advanced > IP settings > Uncheck "Automatic metric". Set Interface metric as "200". OK > OK > OK
If still lose connection then go to adapters window, right click on your device's connection and disable it, this for sure will stop it overtaking connection.