Question : NNTP: "You have no permission to talk"

Recently I starting to receive this message, while tried to
use news. Mail (SMTP), WWW, FTP works OK. I thought that it's
Netscape 4.5, but same message goes from IE and even from
WinVN. Reinstalled MSDUN - no luck. Service guys said, that
their news work OK (sure thing :), so I think that fault is
on my side. Auto-run tasks all the same: Cpuidle, RVS Port
Server (maps ISDN on COM port), Moony Caller ID detector,
CleanSweep detector modules.
PS: DeviceManager has some "DialUp with VPN" as well as normal
DialUp adapter listed, but it sits there long time.

Answer : NNTP: "You have no permission to talk"

Ok so i understand your problem is solved or at least you are looking with your ISP to find it out.  It is strange since most isp's use special protocols to authenticate (RADIUS/TACACS) and it usually means that once you are in, you don't have to authenticate every service, just once at login.

Good luck