More than that, you are not able to access cPanel and webmail. The links https://hostname/cpanel and https://yourdomain.com/cpanel are receiving the error ‘Server connection timed out’.
What is happening?
Most likely, your external IP address was blocked by Firewall. Firewall is a set of devices designed to protect networks from unauthorized access while permitting legitimate communications to pass. Due to security reasons, we have installed Firewall on our servers, too.
In case of more than 5 failed login attempts within 3600 seconds from your IP-address gets blocked permanently.
So, if you find yourself not being able to connect to the website, cPanel and webmail from a certain computer, most likely you have triggered the Firewall rules.
Please contact our Support and we will gladly unlock your IP.
What can be the reason of the IP being blocked and how to avoid it?
* Failed cPanel login
When you were not able to login to cPanel from the first time, please do not try to do it as many times as possible. Once you have used the incorrect login details 5 times in 3600 seconds, the IP gets blocked. To avoid that, please check your login details in a Account Information Email that was sent to the email account, associated with the hosting package. Otherwise, feel free to ask for the cPanel password reset via our Support.
* Failed POP3/IMAP or webmail login
If you have issues logging into webmail, please reset the email address password in the cPanel account on the ‘Email accounts’ page from manage option.
If you are using an email client, make sure you update the login details there.
* Failed FTP login
Please make sure your FTP client is using correct login details and appropriate settings. Please make sure to use port 21 for FTP.
* Failed web page login
It occurs when there is an authentication form or a protected directory on the website. Please make sure to use correct login data.
* PortScan activity
Port scan is an attack that sends requests of a client to a range of server port addresses on a host with the goal of finding an active port and exploiting a known vulnerability of that service. To avoid that, please make sure your clients are configured in a way not to permanently attempt to scan ports of a server. Reduce timeout intervals on all FTP and mail clients in your network. If there are many users in your network, and all of them are accessing the Internet from an external IP address, make sure they do not reconnect using FTP or mail clients frequently. Connection requests coming from one IP can trigger the firewall to block the IP. You can modify FileZilla’s max concurrent connections for every site you connect to in the following way:
1. Start up the FTP program FileZilla and go to Edit -> Settings
2. Under the left sidebar menu on the Settings window, you should see the Transfers option. Click on it.
3. Under Concurrent transfers, you have the label “Maximum simultaneous transfers:”, then a text box with a numeric value in it. Make sure that the number is 3 or less. It is recommended to keep this value at 1 if possible, because having multiple connections will slow down your uploads in the long run. If the value is more than 3, you may get blocked.
4. Hit the button labeled “OK” and exit FileZilla. Then, start it up again for the changes to take effect:
To change the max number of concurrent FTP connections on a per-site basis, you need to go to File, and then Site Manager. Click on the saved web site you wish to edit, then click on the “Transfer Settings” tab. Change the value in the text box listed there to 3 or less, hit the button labeled, “OK” then disconnect and restart FileZilla for the changes to go in effect.