Sonoff devices connection issues

I have an issue with some Sonoff devices where I can’t communicate with them if I’m not connected to the same Wi-Fi network. They appear as offline, but when I restart the router, they work again for a while. What is the problem, and what is the solution?

More like a network issue. If local control works, your Wi-Fi’s fine, so I suspect there are some settings on your router causing this.

Have you set any proxy/VPN or firewall configuration? How do devices from other brands do they work well at the same time?

Yep a 2 weeks ago i try to configure the router to control my pc by Internet so i think ibshould rest my router?

Is that the day when your devices see connection issues? If so, please check if you can undo any configurations.

For more instructions, please get in touch with support; they can better assist you with the log attached.