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Weird DNS Problem
My internal domain name is companyname.com and the external is www.companyname.com.
When setting up the network I setup a New Host (A) records for ftp, www and mail because we have a hosted solution for our website (because the internal machines wont resolve to the ext. domain).
Now the problem is, from time to time the internal machines are not able to access any website but for mail.companyname.com, ftp.companyname.com and www.companyname.com. i.e. it is just able to access the ones with Host A records and nothing else. I checked the DNS Event Viewer, but nothing unusual. Called and checked in with my ISP also, everthingz fine. Can somebody help me with this please? Thanks.
PS: Running Win 2003 (STD) Server, Client PCs run on XP SP2. Sitting behind Soho 6 Firewall. Thanks.