I have RB2011 (v6.11) with USB MODEM 3G “ZTE M821D”
When i connect the modem and reboot then routerboard i see it in “Resources”-“USB”
Device: 1:2 Vendor:ZTE:Incorporated ect.
BUT
I not see nothing in the interface list and in “PPP Client” i see only “serial” port.
Thanks