[Steven Zahm]

@ Nathan

Since this is an intranet I can really only give you guesses…

Make sure you have at least PHP 5.3 installed on your intranet server. WordPress recommends 7.2, but that was just released and not all plugins are compatible yet, so I recommend PHP 7.1

Make sure WordPress is up to date.

Try increasing the memory allocated to PHP.

Lastly, do the conflict checks:

• How do I check for a theme conflict?
• How do I check for a plugin conflict?

Let me know what your learn.