I can help you with that. Here are some things you can try to fix the EasyConnect problem on Kubuntu 22.04.3:

Make sure that EasyConnect is installed. You can do this by opening a terminal and running the following command:
sudo apt install easyconnect
Check the EasyConnect settings. Open the EasyConnect settings by clicking on the Activities button and searching for "EasyConnect". Make sure that the "Enable EasyConnect" checkbox is checked.

Restart your computer. Sometimes a simple restart can fix the problem.

Disable SELinux. SELinux is a security feature that can sometimes interfere with EasyConnect. To disable SELinux, open a terminal and run the following command:

sudo setenforce 0
Reinstall EasyConnect. If all else fails, you can try reinstalling EasyConnect. To do this, open a terminal and run the following command:
sudo apt remove easyconnect
sudo apt install easyconnect
If you are still having problems with EasyConnect, you can contact Sangfor support for help.

Here are some additional things to keep in mind:

EasyConnect requires a working internet connection.
EasyConnect may not work if you are using a VPN.
EasyConnect may not work if you are using a proxy server.

I can help you with that. Here are some things you can try to fix the EasyConnect problem on Kubuntu 22.04.3:

Make sure that EasyConnect is installed. You can do this by opening a terminal and running the following command:
sudo apt install easyconnect
Check the EasyConnect settings. Open the EasyConnect settings by clicking on the Activities button and searching for "EasyConnect". Make sure that the "Enable EasyConnect" checkbox is checked.

Restart your computer. Sometimes a simple restart can fix the problem.

Disable SELinux. SELinux is a security feature that can sometimes interfere with EasyConnect. To disable SELinux, open a terminal and run the following command:

sudo setenforce 0
Reinstall EasyConnect. If all else fails, you can try reinstalling EasyConnect. To do this, open a terminal and run the following command:
sudo apt remove easyconnect
sudo apt install easyconnect
If you are still having problems with EasyConnect, you can contact Sangfor support for help.

Here are some additional things to keep in mind:

EasyConnect requires a working internet connection.
EasyConnect may not work if you are using a VPN.
EasyConnect may not work if you are using a proxy server.