We had a website in a development mode and were able to access it from the office using the IP address and www.domain.com.
I have in the local DNS an A record for www pointing to the site IP which allowed access during development.
After making the site live, removing a forwarder at GoDaddy.com and changing the A (Host) record (@) to the site IP we are not able to access the site from the office.
The site is still accessible from external networks using the www.domain.com and the IP address.
I can ping both the IP & the www.domain.com from the office.
Using tracert for the IP gets out for 16 hops.
Using tracert for the www.domain.com only returns 1 entry which is our DNS server.