Express rear view for reference:
I ran ethernet from the Extreme to the Express (which is the the Apple-recommended method) and when I plug it in to the WAN port, it brings the entire network down… both Extreme and Express are inaccessible.
When I disconnect the ethernet cable, and the Express is connecting to the Extreme via wifi, the Express works to successfully extend wifi coverage. BUT I'd rather have it hardwired together (again, Apple-recommended, and a bunch of other reasons).
What's going on here? How do I get this work?
Here's what I know:
- I actually have two Expresses (only connecting one though) and both behave exactly the same way.
- I know the ethernet cable and its connection to the Extreme is working, because I had another device that used that cable/port and it was working fine (Netgear Arlo Pro Hub).
- From the image above, it actually looks like the WAN and LAN ports are interchangeable(?). So I've tried on both ports. No difference.
- All devices have been upgraded to the latest firmware.
*Yeah, I know: this is ancient tech. But up until this point my home wifi network has been rock solid. I got the pair of used Expresses for $30 total… so why not give this a shot?