@Mariomark1541 My best tipp is alway do a backup when you have done a change with your controller, if not you can loos all one day. and you will before or later.

@Mariomark1541 Yep, then yo have to do it from scratch. Mariomark1541 wrote @MR.S okay but I have make no backup before u installed the new firmware so when I downgrade I lost all of my settings then...

@UniKL_MIIT IPsec work pretty good for me but if you use OpenVPN or SSL VPN then IPsec is destroied. So my advice is to remove all settings from SSL VPN reboot router, then You can use OpenVPN but...

@UniKL_MIIT IPsec work pretty good for me but if you use OpenVPN or SSL VPN then IPsec is destroied. So my advice is to remove all settings from SSL VPN reboot router, then You can use OpenVPN but...

@Mariomark1541 Here is a how to upgrade. This show where to install software https://www.tp-link.com/en/support/faq/3684/

@Mariomark1541 Warning. the most important thing here is that you take a backup of controler before doing anything, you must also have a backup of the controller before you upgraded, the new backup...