I am looking at buying a set of TP-Link Deco X55 AX3000 - I know one is quite a way from the plug socket It looks like a barrel connector for a power supply - could someone tell me the size so I can...

Whar does End of life mean ? Does it stop working ? Or No more firmware upgrades (And the possibility of security issues) Or I can't upgrade my controller any more OR ?

@Shedbuilder - Thank you for your answer I think what you are saying is to move the router and your controller machine to 192.168.0.x range Adopt the switch Then move everything back ? Did you try it...