need a braodband wireless router with an in-wall (US 1-gang wall plate) form factor.
Input ports:
1) an RJ45 passthrough female port,
2) an RJ45 WAN PPPOE connection
Output Ports:
a) Passthroiuggh RJ45 from the input
b) Rj45 10/100/1000 LAN port
c) 802.11 b/g/n (or 802.11 ac)
See the function desired in the pictire below:
https://snag.gy/t4J8ZR.jpg