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.

hello,

im having the same issue with a cisco router. CLI say sussessfull update but into the dashboard no track any IP change.

Try to opne a TK for assistance.

Jun 17 2024 17:31:57 GMTSumm: DYNDNSUPD: Adding DNS mapping for xxx.ddnsfree.com <=> 151.30.163.249
Jun 17 2024 17:31:57 GMTSumm: HTTPDNS: Update add called for xxx.ddnsfree.com <=> 151.30.163.249
Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: Session ID = 0xBC
Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: URL = 'http://api.dynu.com/nic/update?hostname=xxx&password=xxx'
Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: Sending request
Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: Response for update xxx.ddnsfree.com <=> 151.30.163.249

Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: DATA START
unknown
Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: DATA END, Status is Response data recieved, successfully
Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: Call returned SUCCESS, update of xxx.ddnsfree.com <=> 151.30.163.249 succeeded
Jun 17 2024 17:31:57 GMTSumm: DYNDNSUPD: Another update completed (outstanding=0, total=0)
Jun 17 2024 17:31:57 GMTSumm: HTTPDNSUPD: Clearing all session 188 info

ok, my mistake.
cisco ip ddns client trick me so now it's everithing fine.
Thanks Dynu for you free services.