... ciao: : on "1-29-2011" "Juergen Beisert" writ: : But why it is up and running again when I just restart the pppd? "perhaps" restarting pppd 'tickles' the provider's system, and it responds. i can't say for sure. : This log is from the pppd-2.4.5. "RP-PPPoE plugin version 3.8p compiled against pppd 2.4.5 pppd version 2.4.5" : Running the pppd-2.4.4 a message like the "Modem hangup" terminates the pppd, : nothing else. "yossarian pppd[8703]: Serial link appears to be disconnected. yossarian pppd[8703]: ... ( more log data ) yossarian pppd[8703]: Connect time 7026.8 minutes. yossarian pppd[8703]: Connection terminated. yossarian pppd[8703]: Modem hangup" if you're saying, the "ONLY" thing your (2.4.4) logs say about losing a connection is, "Modem hangup", i'd suggest you make the reporting more verbose. : Also in this case I just start the pppd again and everything is : working again. I'm confused. from my reading, your confusion is aggrivated by not knowing if the problem, pppd-version specific, or provider related. in my case, i was getting the same results with identical modems, and 'sometimes' they both worked "flawlessly". that did not suggest a problem with pppd, and 'failure to respond to echo requests' tended to support that conclusion. assuming, no hardware changes, i'd suggest going back to 2.4.4 and watching what happens. see if you can isolate the problem. if, it turns out to be a version specific issue, the ChangeLog might offer a starting point for further investigation ... -- ... it's not what you see , but in stead , notice ... -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html