The public IP at our office changed, but the DDNS did not update with it. Our hostname is still mapped to the old IP. What could be causing this? Thank you.

Could you please let us know your hostname and what client software or router you are using to update the IP for that hostname?

It is romc.dynu.net. I believe it is a Westell router/modem and I will double check on the client software.

You need to setup dynamic DNS service in your router or run the IP update client software on your computer to keep your hostname mapped to the most curret IP at all times.

You may refer to https://www.dynu.com/DynamicDNS/IPUpdateClient to download the appropriate client software. Alternatively, you may send us a screenshot of your router dynamic DNS settings so that we may help you with the configurations.

Ok thanks. I will try to send you a screen shot.