ResNet Registration – Bad Hostname Error

There is currently an issue affecting network devices that have not been registered with ResNet. When you attempt to register your device, your internet browser will be unable to redirect itself to the ResNet registration page. You will see an error stating, “Bad Hostname” or “Bad Request (Invalid Hostname).”

We are working to resolve the issue so you can self-register your network device.

Until this issue is resolved, if you are able to browse the internet, please go to and click on “Register Connection”. If this does not work for you, or you are using a device that does not have a browser,  please email us so that we may manually register your connection.

Please email us at using your UCSD email address with the following information:

  1. Location of dorm
  2. Network device (e.g., XBox*, Wii**, DS**, Mac, PC, eBook reader, etc.)
  3. WAN MAC Address (xxxx.xxxx.xxxx)
  4. IP Address of device (a correct temporary IP address given by ResNet should be
  5. Phone Number

We sincerely apologize for this inconvenience, and we hope to resolve this issue as soon as possible. We will be working over the weekend, so your device should be registered within 24 hours from the time you email us.