Test with older kernel
root@lamobo:~# wvdial t-mobile --> WvDial: Internet dialer version 1.61 --> Initializing modem. --> Sending: ATZ ATZ OK --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 OK --> Sending: AT+CGDCONT=1,"IP","internet.t-mobile","0.0.0.0", 0,0 AT+CGDCONT=1,"IP","internet.t-mobile","0.0.0.0", 0,0 OK --> Modem initialized. --> Sending: ATDT*99# --> Waiting for carrier. ATDT*99# CONNECT --> Carrier detected. Starting PPP immediately. --> Starting pppd at Fri Jan 1 01:13:00 2010 --> Pid of pppd: 3719 --> Using interface ppp0 --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> local IP address 10.51.78.212 --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> remote IP address 10.64.64.64 --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> primary DNS address 10.74.210.210 --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> secondary DNS address 10.74.210.211 --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> Connect time 0.1 minutes. --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> pppd: â–’â–’ â–’â–’[01][10]â–’â–’[01] --> Disconnecting at Fri Jan 1 01:13:06 2010 --> The PPP daemon has died: A modem hung up the phone (exit code = 16) --> man pppd explains pppd error codes in more detail. --> Try again and look into /var/log/messages and the wvdial and pppd man pages for more information. --> Auto Reconnect will be attempted in 5 seconds --> Initializing modem. --> Sending: ATZ ATZ OK --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 OK --> Sending: AT+CGDCONT=1,"IP","internet.t-mobile","0.0.0.0", 0,0 ^CCaught signal 2: Attempting to exit gracefully... AT+CGDCONT=1,"IP","internet.t-mobile","0.0.0.0", 0,0 OK --> Modem initialized. --> Disconnecting at Fri Jan 1 01:13:07 2010