Pogledaj sta napise u sistemskim logovima, ne znam sve te kodove gresaka. probaj chmod +s /usr/bin/pppd mozda nisu podesene privilegije, probaj da se konektujes kao root(ili sa sudo kppp)
May 20 21:07:31 localhost pppd[7063]: Plugin passwordfd.so loaded.
May 20 21:07:31 localhost pppd[7063]: pppd 2.4.2 started by sasa, uid 1000
May 20 21:07:31 localhost pppd[7063]: Using interface ppp0
May 20 21:07:31 localhost pppd[7063]: Connect: ppp0 /dev/ttyS0
May 20 21:07:31 localhost pppd[7063]: Unable to obtain CHAP password for aleks on whatremotesees from plugin
May 20 21:07:31 localhost pppd[7063]: No CHAP secret found for authenticating us to whatremotesees
May 20 21:07:31 localhost pppd[7063]: CHAP authentication failed: Authentication failed
May 20 21:07:31 localhost pppd[7063]: Connection terminated.
May 20 21:07:31 localhost pppd[7063]: Exit.
Proveri da li se makon izvršavanja ovih ls komandi dobija isti rezultat: i pošalji razlike.
[code]
ls -l /etc/ppp/chap-secrets
-rw——- 1 root nekagrupa 109 May 19 13:06 /etc/ppp/chap-secrets
ls -l /usr/bin/kppp
-rwsr-xr-x 1 root root 575372 Mar 22 10:05 /usr/bin/kppp*
ls -l /usr/sbin/pppd
-rwsr-xr-t 1 root root 291263 Feb 2 16:33 /usr/sbin/pppd*
[/code]