From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)

Description of problem:
I dial up using kppp, and the dialer connects, reports a speed in the log, then 
disconnects abruptly while I see the process "logging onto network" in the kppp 
screen.

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.Open kppp
2.Dial to my ISP
3.Look in terminal from which kppp was initiated for error message.
	

Actual Results:  The dialer gives the error message in the terminal.

Couldn't find interface ppp0: No such device

Then, I check the log files (tail -f /var/log/messages)and get this.

May 22 03:09:06 linux-firewall modprobe: modprobe: Can't locate module ppp0
May 22 03:09:18 linux-firewall last message repeated 103 times
May 22 03:09:46 linux-firewall pppd[1138]: pppd 2.4.0 started by root, uid 0
May 22 03:09:46 linux-firewall pppd[1138]: Using interface ppp0
May 22 03:09:46 linux-firewall pppd[1138]: Connect: ppp0 <--> /dev/ttyS0
May 22 03:09:46 linux-firewall modprobe: modprobe: Can't locate module net-pf-5
May 22 03:09:47 linux-firewall pppd[1138]: Hangup (SIGHUP)
May 22 03:09:47 linux-firewall pppd[1138]: Modem hangup
May 22 03:09:47 linux-firewall pppd[1138]: Connection terminated.
May 22 03:09:47 linux-firewall pppd[1138]: Exit.





Expected Results:  It should have connected.

Additional info:

Nearly every redhat expert in almost every message board and irc chat group 
(irc.linpeople.org) from the Eastern to the Western seaboard are scratching 
their heads on this one and we don't have a clue how to fix it.

I am using kernel 2.4.9, recently rebuilt in ppp built-in mode and module, 
neither made any difference. Also tried kernel 2.4.2 and 2.4.18, both built-in 
and module and no difference.

Please e-mail me @ ryanoe when you have solved it. I've been working 
on this for 3 weeks now.