@CaptainSkeleton What about ethernet port status (my first screenshot) ? What's the ethernet port status from Synology NAS side ? Did you try another cable ?

@CaptainSkeleton What's the Air R5 ethernet port status where you've have connected the Syno NAS: Do you see the NAS in the router clients list: You can check the ethernet port status from the Syno...

@Lucav87 If your goal is to receive your public IP address on the WAN2 you should use a modem router that supports bridging. In general TP-Link DSL modem routers can be configured in bridge mode...

@Gup It depends on your local market. I've seen only the TL-WPA8631P on sale. Check this sale for example - https://www.discomp.cz/tp-link-tl-wpa8631p-powerline-wi-fi-extender_d100485.html

@vespa Unfortunatelly Onemesh is a TP-Link proprietary technology and you''ll need a TP-Link Onemesh capable router with Wi-Fi on (Onemesh doesn't support ethernet backhaul). Besides RE715X in AP...

@Lucav87 If your question is does TL-MR110 support bridge mode, probably this post answers that question.