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

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...

Outlook: Error 0x800ccc0d or 0x800ccc0f When Receiving and Sending E-Mail

When you try to send and receive e-mail, you may receive one of the following error messages:...

An error has occurred

When you attempt to send and receive messages, the operation is unsuccessful, and you may...

550 Access denied - Invalid HELO name

The error message "550 Access denied - Invalid HELO name" means that the server you are trying to...

How do I set up Outlook or Outlook Express 5?

Start Outlook or Outlook Express. Click Tools and choose Accounts. In the Internet Accounts...