How can I connect from my Synology to a wired camera when they are in different networks?

Hi ​@KiloMeater . Welcome to the KPN Community.

Thank you for your detailed question! Unfortunately, this scenario involves network setups and configurations that fall outside the standard scope of moderator support. However, this is a great topic for our community to dive into. There are many experienced users here who might be able to share tips and tricks for bridging networks and making devices communicate across subnets.

​@Marlon92 Heb jij hier misschien ideeën over? 

For the TP-Link router, the 192.168.2.x network of the KPN box is a little wide-area network, so you can reach e.g. the web interface of the camera from the synology just by it’s IP address 192.168.2.110.

The other way around, if the camera wants to send into the Synology, you have to run on the Synology a program which is able to accept the data, and setup port forwarding on the TPlink router. The IP address on the camera to reach the Synology is the 192.168.2.x address of the TPlink router, not the Synology itself.

For example, if the Synology runs a SMB server, you can setup a port forward for port 445/tcp to the Synology address, if supported limited to source address 192.168.2.110.

The red line on the picture could only be accomplished by a physical link, like connecting the camera to the TPLink WiFi, or a virtual link like a VPN or IP-tunnel, but I do not think the camera has software tools to set this up.

​@KiloMeater . Nice and thank you for sharing the solution with us!