IP Address Has Changed! Error When Using Webmail

The error IP Address Has Changed can occur in cPanel and its webmail if your IP addresses changes often due to a weak dhcp lease with your ISP. This can also occur if you log into the same account via two different devices at the same time which have two different IPs. This raises a security flag and blocks you out with the error as a protection service from hackers.

  1. Login into cPanel and WHM.
  2. Click on “Main” -> “Server Configuration” -> “Tweak Settings” -> “Security Tab”.
  3. Look for “Cookie IP Validation” and change the setting to "loose". 
  4. Disable proxy domains also in the Tweak Settings area.
  5. Clear your web browser’s cache and login into cPanel like normal.



  • 142 Users Found This Useful

Was this answer helpful?

Related Articles

Domain has exceeded the max defers and failures per hour

You may receive the following error message. "Domain has exceeded the max defers and failures per...

Cannot write to cache directory /tmp/horde

When I try to access web mail in the cpanel and get this messageA fatal error has occurred...

Server Error 0x800CCC90, Error Number 0x900CCC92

There are many reasons for the above error. Make sure you are using username@yourdomain.com...

Are the master mail account and system account password the same?

Yes. Changing your system password will change your master email account password.  

How do I change the mx records?

Simply go into your control panel with Ultra, click Zone Editor, then click "Manage". The MX...