Bind Domain Expiration Problem

[Mohsin Raza]

I'm administering two name servers which are working fine but I'm facing 
a problem with a domain pipelink.com.pk, the record expires after about 
24 hours when I reload rndc and restart the service of bind, the domain 
starts to resolve again.

I've searched a lot but I can't figure out what's the problem and how to 
resolve it. So kindly provide any useful information in this regard, I 
shall be thankful.

-- 
Thanks & regards,
 
Mohsin Raza

Maskatiya Communications (pvt) Ltd.
Suites 3 & 4, Al-Saeed Center
BC-13, Block 5, Clifton
Karachi, Pakistan
Voice : +92-21-111-111-375.
Cell : +92-0302-8223357
Fax : +92-21-5837431