@Philip_G Hi, welcome to the community. Have you tried to reset it and set it up again? There hasn't been much auto-rebooting feedback on Deco X20-DSL. It is very likely the auto reboot is caused by...

@Eieino Hi, May I know the model number of your Deco(as well as the firmware version)? Can you also help me submit the APP log? Wait for your reply and Best regards.

@GMR-Bologna Hi, welcome to the community. I think too many satellite Deco units might drag down the main Deco X50-5G. Is there any chance that you could connect one or more Deco X60s via Ethernet...

@ImAroldo Hi, Thank you very much for your feedback. Here are some suggestions for your reference: Install the latest 1.2.0 firmware first-https://community.tp-link.com/en/home/forum/topic/715880...

@Trowa Hi, Thank you very much for the feedback. A new firmware 1.4.4 was released for Deco X50-POE(EU/US). It is suggested to install this version to see whether it helped or not:...

@MollaHalil Hi, welcome to the community. Which OpenVPN server do you plan to connect to, NordVPN or something else? Have you tried the following troubleshooting guide? Troubleshooting VPN Issues on...