I thought I was onto a winner with the T-Mobile 3G and the 2820 router. But when I opened the T-Mobile box box I found that the T-Mobile USB stick is labelled ZTE 626, the 2820 specs show it working with a T-Mobile 110 and also the ZTE 627 but no mention of the ZTE626.

I am using a Vodafone stick and that works fine but the USB led on the router stays off with the T-Mobile.

Any advice? I'm using 3.3.3 firmware for the router.

The Tmobile 120 is only supported with beta versions of 3.3.4 right now, draytek support should be able to send you the latest one.

Thanks for your advice; I have 3.3.4 now and seems to be broadly OK though sometimes at switch-on it doesn't find the USB stick and needs a reboot.