Comment 289 for bug 446146

Updated to 2.6.31-15-generic (karmic-proposed) and the E169 shows connection in the network-manager. Was working alright at first update yesterday night but today it is showing problems again. It shows as connected through the network-manager but doesn't actually get connected ( I can't surf internet or either ping through terminal). Anyways i found a work-around on ubuntu forums- establishing connection through PPPD. The internet works correctly through it!

3G modem connected using only one terminal command (pppd).

$ sudo pppd ttyUSB0 460800 nodetach defaultroute noipdefault noauth lock usepeerdns connect 'chat "" "at" "" "at" "OK" "at&f" "OK" "atz" "OK" "at+cgdcont=1,'IP','gint.b-online.gr'" OK "atdt*99***1#" CONNECT' user web password web

Link: http://ubuntuforums.org/showpost.php?p=7790046&postcount=54