If you're experiencing any accessibility issues with the Website, CPanel, or Webmail, it's likely that the IP address has been blocked by the firewall.
You may be able to quickly fix the problem yourself if you have access to WebHost Manager and the ConfigServer Firewall (CSF).
How to Access ConfigServer Security & Firewall (CSF)
1. Log in to your WHM Dashboard for your server.
2. Under Plugins, select ConfigServer Security & Firewall.
Unlocking an IP Address in CSF
1. From the Firewall management page, scroll down to find the Search for IP section, which should look similar to the following:
2. In the text input box, paste the IP address of the device that has been blocked and click the button.
You can find your local computer's public IP address by searching ‘IP‘ on Google, which will display your IP address, or you can alternatively visit https://whatsmyip.com/.
3. The report will indicate whether there are any Permanent or Temporary Allows or Blocks on the IP address.
If the IP address is blocked, the reason for the block will be shown, and there will be a button at the bottom of the Report to Unblock the IP address.
Clicking this will Unblock the IP address:
Allowing (Whitelisting) an IP Address in CSF
1. Following the steps above, navigate to the Firewall Management page and look for the Quick Allow option.
2. Enter the IP address you want to whitelist into the Green Input box, along with an optional comment for the allow (such as “Office network”), and click the Quick Allow button.
This will whitelist the IP address and should take effect immediately.
This rule will remain active until it is explicitly removed.