Help! no asccess from port

Emerald List server Mail ( (no email) )
Sun, 24 May 98 09:44:01 -0500

Somthing funny happend last night, the emerald server blue screened
Now when it tries to authenticate users ( i tested via radlogin) I get the message
checking Radius user username password
"you are not allowed access from this port"

Anyone knows how I can fix this??

The ports 1645/1646 in RadiusNT are unchanged.