This is my first setup with 3G on a Routerboard. It took a little longer than I wanted to figure everything out, but I eventually got it working.
The steps that made it work.
- Place the UMTS drivers in the /firmware directory on the Routerboard (You should be able to get them from whom you purchased the card.)
- Install the Gobi 2000 and power on the router.
- Shutdown the router and install the SIM card
- Add the ppp-client with the settings below. Continue reading AT&T 3G with Gobi 2000 on Routerboard 411UAHR