Dns server in Windows NT server 4.0

I Insatlled NT 4.0 and activate Dns server.
I got an error in Event viwer like below:
Sendto function Failed.the data is the error.
Event 453 . Category :None
what is my problem?
I Installed Sp3 and Sp6 .
IIS , FTP , Exchange server also Installed.
All of them in singel machine.