Juniper Network Connect always disconnected

I am a heavy user of Juniper Network Connect (NC) which my company use as SSL VPN access. I need NC for me to have remote access to my office PC whenever I am at home or away from my office.

Recently, my HP nc6400 laptop failed to boot after due to corrupted system files, I have to send it to our IT Helpdesk to recover the PC.

Once after I received the PC, I discovered that I had difficulty to connect to Juniper NC. The error message was:

“The Network Connect session terminated. Do you want to re-connect?” “nc.windows.app.23711”

This error message will pop-up after Juniper NC briefly get connected.

After googling, I found the solution.

The problem is actually caused by this program “mDNSResponder.exe” This program will be installed when you install application e.g. Flash CS3, Apple iTunes and Bonjour.

If you press Ctrl-Alt-Del and go to Task Manager and look at your processes then you will find a “mDNSResponder.exe” service running after installing Flash CS3. Ending this process allows you to connect through Network Connect.

You have to do this each time after login. For permanent solution, you might want to try this steps:

Go to Start Menu > Run and type in “services.msc” to open the services configuration panel. Look for a service with a name something like ”##Id_String1.6844F930_1628_4223_B5CC_5BB94B879762##” (I think the bit after the dot will change on each computer). To confirm it’s the correct service double click on it and look at the “Path to executable” – it should be “C:\Program Files\Bonjour\mDNSResponder.exe”. If it is then change the “Startup type” to “disabled” and press the “Stop” button. You should now be able to connect to your VPN.

As far as I can tell, neither of these solutions have had a detrimental effect on my trial install of Flash so I think that they are safe changes to make but no guarantees! Hopefully the information will save someone the time it took me to find the answer.

Credit to:

Kelvinluck.com