@TP-Link That works I t only lacks the cabled 1000Mbit connection to the PC. Thank you

@Jan_Schrik This is how my PC sees the network The laptop is lacking the NAS and the DS apps on mij Ipad also cannot find the IP of the NAS

I had a network consisting of a Ziggo modem with an Archer C7 attached to it. The Archer had on its port a PC and an Synology NAS. After introducing a M5 after the Ziggo Modem and reconfiguring the...