[Bug 405679] Re: Ubuntu 9.04 Acer Aspire one/Lenovo x300, PPTP vpn / ISA server not working

[Harald Puhl]

I do not know if this is the same issue, but I upgraded from 8.04LTS to
9.10 today and could not connect to an ISA server anymore, which worked
perfectly before.

The error reported by pppd in the syslog was:
pppd[31854]: EAP: unknown authentication type 13; Naking

I worked around this problem by unklicking the EAP option in the
Advanced-tab (nm-applet -> Edit -> Advanced -> Authentication). The
connection was established then without any further problems:

pppd[2809]: Plugin /usr/lib/pppd/2.4.5//nm-pptp-pppd-plugin.so loaded.
pppd[2809]: pppd 2.4.5 started by root, uid 0
pppd[2809]: Using interface ppp0
pppd[2809]: Connect: ppp0 <--> /dev/pts/4
pppd[2809]: CHAP authentication succeeded

Maybe this helps?

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Ubuntu 9.04 Acer Aspire one/Lenovo x300, PPTP vpn / ISA server not working
https://bugs.launchpad.net/bugs/405679
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