WAN Port not working on Linkskey Broadband Router

I have a Linkskey LVR-604 broadband router connected to my Rogers ZTE-M275R wireless router thru one of the Linkskey's LAN port (it has 4).
I have this PC connected to another LAN port.
I have my Lorex Security System hooked up to another LAN port.
And, since the USB port on my Brother multi-function MFC-J870DW failed it has been hooked into my network thru the 4th LAN port.
I used to have my basement PC hooked into that 4th LAN port but I ran out of ports.

Now, the Linkskey has a WAN port. If I connect my ZTE wireless router to that port instead of one of the LAN ports, all my connections fail.
How can I make that connection so I can use the 4th LAN port for my basement PC?
Thanks.
 
Solution
Add another ethernet switch or replace your Linkskey with a different switch (with more ports).

Wan port can not be used as lan port - unless you reflash Linkskey firmware with some custom firmware. But that's a lot of tinkering and you may brick your Linkskey in the process.
Maybe I should be a little clearer...

I have never used the WAN port on the Linkskey.
I set it up as a network switch.
Up until the USB printer port failed this was the config...

LAN Port 1 - ZTE wireless router (ISP connection to Internet)
LAN Port 2 - This PC
LAN Port 3 - Basement PC
LAN Port 4 - Lorex DVR

After Brother printer USB port failed...

LAN Port 1 - ZTE wireless router (ISP connection to Internet)
LAN Port 2 - This PC
LAN Port 3 - Brother LAN connection
LAN Port 4 - Lorex DVR

Basement PC now has no connection.
Need to move ZTE wireless router connection to WAN connector so I can connect basement PC to LAN port 1.

Here is the current config...

https://imgur.com/a/k2cw9Bm

Need more info? Let me know.
Thanks.

 
Add another ethernet switch or replace your Linkskey with a different switch (with more ports).

Wan port can not be used as lan port - unless you reflash Linkskey firmware with some custom firmware. But that's a lot of tinkering and you may brick your Linkskey in the process.
 
Solution


Thanks SNR.
The manual says that I can connect my Internet Router to the WAN port and my IP devices to the 4 LAN ports.

So you are basically saying that I cannot use the Linkskey as a switch if I use the WAN port?