Hi guys,

I purchased an RB411U and an RB411UAHR and two sierra MC8704s to use as 3G modems. I've spent the last few days searching for information regarding the setup procedure of this pair and can't seem to get the 3G modem to respond to the routerboard.

I've tried versions ROS 5.3 and 6.1 to no avail. Here are the diagnostics I have available:



In the port menu, the usb2 device (which is the sierra) is only displaying 1 channel, which does conform to the spec which states differents channels for information (3) and data (2):
If I try to open a serial session on channel 0, I don't get any response from the device. Similarly, if I try to initiate a ppp-client info I receive:
I've tried disabling and enabling IP features and rebooting and the card did not appear as an LTE interface:
I'm at a loss as to further how to diagnose this. Any help would be greatly appreciated.

Cheers

What data channel are you using?
What does say?

Hi Roger, sorry I never replied. After a day I got impatient and swapped it for a MC7710 (and paid the difference). Working now 3G and 4G