note – first uninstall sslvpn client and sophos connect
1. download first the installer software given link below
click here to download

Save in your system then extract the zip file
then install the file given below image

2nd step

after installation finish
3rd step

Open the sophos connect
then you download for user portal your config file
Download configuration for other OS
4 step

after download config file
Import the file

then connect

give user name and password and connect