Greetings All!
I am a new Linux user and was wondering if someone could please help me with a network issue:

I moved from my old network to a new network, and I can't access any webpages from my old network, but any other pages work fine.

Could it possibly have something to do wth my hostname? my host name is

user600.oldnetwork.com

any page with "olldnetwork.com" doesn't load.

I am using DNS.

Any suggestions would be greatly appreciated. have a nice night!