Try this URL https://www.tp-link.com/en/download/TL-R600VPN.html

I have now upgraded to the latest firmware. - 4.0.2 Build 20180126 Rel.54530 It has made no difference - my issue still exists.

fearthebeard wrote You are using IPsec Client to Lan VPN. It's suggested upgrade into the latest firmware 180126. Never heard something like that before. You could ping your server, but you cannot...

Model : Hardware Version : Firmware Version : ISP : I have just purchased and setup a TL-R600VPN router, Hardware version 4 and Firmware Version 4.0.1 Build 20171128 Rel.60595 I have created a...