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PPP Error 720/721 on dial-up

By mariov ·
Hi,

Scenario:
Arrived at work Monday morning, Windows2000 server with service pack 2 not starting.

We eventally decided to
1) Fresh install
2) Restore from full system backup taken Friday evening (including system state) using built-in MS-Backup.

Problem:
Everything back to normal except that when we try to dial out using an ISDN or analogue modem we receive error message 720 or 721 "PPP not configured correctly etc". after the dial-up is verifying username/password.

We have uninstalled, rebooted and reinstalled TCP/IP, installed modems from scratch and created new dial-up settings - all with the same result.

Any help would be appreciated.

Regards,

Mario

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PPP Error 720/721 on dial-up

by hippo In reply to PPP Error 720/721 on dial ...

Couple of things come to mind which may help
Q numbers refer to support.microsoft.com
Modems allowed to dial out?
NetBios installed ? (Q12329
TCP installed for modems (Q12274

If that doesn't work, see Q234014 to set up logging

~Tony

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PPP Error 720/721 on dial-up

by mariov In reply to PPP Error 720/721 on dial ...

Thanks for the help but I had tried all of that already. Eventually got hold of MS and to cut a long story short, there recommendation was to re-install!! Machine stopped rebooting during re-install and next recomendation (with MS again) was to format!! Thank goodness for backups. Cheers

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PPP Error 720/721 on dial-up

by mariov In reply to PPP Error 720/721 on dial ...

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