Comment 2 for bug 411668

I removed everything under /etc/NetworkManager/system-connections and restarted NetworkManager, and configured my ATT 3G under MediaNet (as listed on my account on ATT website). This time the network manger does not crash, but it never makes any connection. I get the following messages NetworkManager & pppd.

Aug 12 09:41:19 little pppd[4784]: pppd 2.4.5 started by root, uid 0
Aug 12 09:41:19 little pppd[4784]: Using interface ppp0
Aug 12 09:41:19 little pppd[4784]: Connect: ppp0 <--> /dev/ttyUSB0
Aug 12 09:41:19 little NetworkManager: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Aug 12 09:41:19 little NetworkManager: <info> (ttyUSB0): device state change: 5 -> 6 (reason 0)
Aug 12 09:41:19 little pppd[4784]: CHAP authentication succeeded
Aug 12 09:41:19 little pppd[4784]: CHAP authentication succeeded
Aug 12 09:41:19 little NetworkManager: <info> (ttyUSB0): device state change: 6 -> 7 (reason 0)
Aug 12 09:41:23 little pppd[4784]: Could not determine remote IP address: defaulting to 10.64.64.64
Aug 12 09:41:23 little pppd[4784]: Cannot determine ethernet address for proxy ARP
Aug 12 09:41:23 little pppd[4784]: local IP address 10.143.82.129
Aug 12 09:41:23 little pppd[4784]: remote IP address 10.64.64.64
Aug 12 09:41:23 little pppd[4784]: primary DNS address 172.16.7.167
Aug 12 09:41:23 little pppd[4784]: secondary DNS address 172.16.7.167
Aug 12 09:41:23 little NetworkManager: <info> PPP manager(IP Config Get) reply received.
Aug 12 09:41:23 little NetworkManager: nm_ip4_config_add_nameserver: assertion `nameserver != s' failed
Aug 12 09:41:23 little NetworkManager: <info> Activation (ttyUSB0) Stage 4 of 5 (IP4 Configure Get) scheduled...
Aug 12 09:41:23 little NetworkManager: <info> Activation (ttyUSB0) Stage 4 of 5 (IP4 Configure Get) started...
Aug 12 09:41:23 little NetworkManager: <info> Activation (ttyUSB0) Stage 4 of 5 (IP4 Configure Get) complete.
Aug 12 09:43:47 little NetworkManager: <info> (ttyUSB0): device state change: 7 -> 3 (reason 39)
Aug 12 09:43:47 little NetworkManager: <info> (ttyUSB0): deactivating device (reason: 39).
Aug 12 09:43:47 little pppd[4784]: Terminating on signal 15