@Marvi I find client certificate & key is missing on during setup the client. how to edit it . & the page say . you can edit by CA.file. how to edit. thankyou for your support!

Step 1 & 2 it is confirmed. 1) I am use OpenVPN. 2) my loptop is running OpenVPN Gui software for connecting ( Surfshark VPN), IT is ok 3) I hadn't see any error or fault when I setup TP-link VPN But...