If you still get the error message after following the steps, then try restarting your computer. If you’re a Windows 10 user then this method will work effectively for you. Then try removing ‘Block Dangerous and deceptive content’ discussed in the 5 th step and try again.

Step 10 – If you still got the “Failed to establish connection” error when registering your DSC.

Now try again you will receive the warning message. Then press CTL + Shift + Del key to select Site preferences.

Step 9 – In some cases, the warning message will not be shown.

And now try registering your DSC in the GST portal.

Step 8 – After selecting the above option, wait for few seconds or a minute on the site and then close the tab.

Step 5 – Check whether the ‘Block Dangerous and deceptive content’ and other options are selected as shown in the below picture.

Step 4 – Open Mozilla Firefox and open ‘Go to tools’ and move to ‘Options.’ Select the security and privacy tab and open it.

Ensure the Emsigner is running as an administrator.

Step 3 – Now, insert your DSC token into the USB drive.

Step 2 – Update your JAVA to the latest version and follow Steps 3 – 8 in the previous section.

Step 1 – Update your browser (Mozilla Firefox) to the latest version using this link.

Solution for Emsigner Error in Mozilla Firefoxįollow the following steps to fix the ‘failed to establish connection’ error in the GST portal – Now let’s see how to fix the ‘Emsigner error’ in the other two browsers.

The step-by-step DSC registration guide in the GST portal is discussed later in the article.

Step 9 – Now, try to register your DSC with the GST portal it will work fine.

Close it, and open it in an above-said way.

Step 8 – Now, right-click the Emsigner and select the “Run as administrator.” Suppose the Emsigner opened automatically after the restart.

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