Yes, if i disable the connectivity to my ISP provider, the system starts normally. Now i am bit against the second suggestion given by you because there are many private networks whose server name is the same as the ISP provider's server name. Still than they donot have this type of problem because they perform NAT. That is what i have done but still i have the problem. So i feel something is missing when i perform the NATing. If you could help me in this i would be grateful.
My first question is, is it a new network? or it was working, but not now?
Generally NAT name should be public name given by ISP, not your own name.
You said problem is due to 'NetBios' which means, did you configured you NAT on Widnows BOX?.
I don't the same problem will faced by other people who are using NAT.
Generally the following is the way to assign the name.
assume you got 'xxx.com'( public name) 20.56.78.26 ( IP address) from ISP, it should be your NAT box name IP address.
your private network name as to be as follows.
host1.xxx.com 192.168.55.77
host2.xxx.com 192.168.55.78
host3.xxx.com 192.168.55.79
If you assign the name as above, will it give any problem with name?. i don't think so. still you are geting the problem. i think it is someting to do with ISP.
report this problem to ISP, before that do some kind of troubleshooting about this.
Regards,
Arul