Good Day Jeremy, It’s definitely network problem either in your company or your hosting provider. Since this is working from outside your company, then I don’t think hosting provider issue except provider has blacklist your company IP but that should not be the case. Now come back to the company network, Are you getting any error on the webpage? I am sure you have already tried basic troubleshooting, have you tried to run Wireshark and the open site then let’s see what you get on it.