Can not reach company website from internal network

Have you checked to make sure the IP address of the webserver has not changed?  Depending on your hosting company and who handles your public DNS zone, it's possible that the webserver's address could have been changed and the public DNS zone updated. But if you weren't aware of the change, your internal address for www.company.com would be incorrect.

Do you NEED to have your own internal DNS entries for www.company.com? Surely, if the website is hosted externally you wouldn't need an entry in your own DNS.

They would need it only if the internal and external domain names are the same.

thanks for all the suggestions. I will try them all and post back tomorrow

Hi They have a forward look up zone created for company.com. There are a few websites and the mail server address in there as well as an ftp site. This includes an MX record. One website and ftp site share the same IP. Kiero firewall was recently installed on the network.

Another thing I should mention we have a .ca that forwards to the .com

Both are accessible outside only .ca inside.