Mac OS X Server, VPN und Intel iMac - Verbindung bricht ab!

[TheMagnificent]

Folgendes Problem:

Ich möchte per VPN auf einen Mac OS X Server verbinden. Das hat auch mit meinem G5 ohne Probleme geklappt. Versuche ich das nun mit meinem Intel iMac wird die Verbindung nach ca. 60 Sekunden abgebrochen.

Hier ein Auszug aus der console.log:

Feb 10 15:25:32 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:35 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:38 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:41 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:44 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:47 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:50 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:53 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:56 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:25:59 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:02 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:05 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:08 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:11 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:14 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:17 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:20 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:23 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:26 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:29 imac pppd[841]: Received bad configure-nak/rej: 01 06 00 00 00 01 02 06 00 00 00 01
Feb 10 15:26:32 imac pppd[841]: MPPE disabled

Ich habe scheinbar nicht als einziger das Problem: http://discussions.apple.com/thread.jspa?messageID=1709190#1709190

Hat da vielleicht jemand einen helfenden Hinweis für mich?

Gruß
TheMagnificent