How to add X3000 to existing LAN as internet source?

Technical Support for Routers
1

I have an existing LAN at my home office with an Amplifi Alien WiFi router that assigns IP addresses to all the other devices on the network. Unfortunately, the cable line that supplies internet to my home was cut by utility workers so I've had rely on cellular data or WiFi-as-WAN for accessing the internet. My Amplifi Alien can't do either, so I've brought in my X3000 from my RV to limp along until my cable connection is repaired.

This has worked okay for my computer, which can connect to both the LAN (via Ethernet) and my X3000 (via WiFi) at the same time. It does not work for anything else. My Apple TV, for example, can only be connected via WiFi or Ethernet, which means it can only access internet resources or LAN resources (like my NAS) but not both at the same time. This is a problem.

I'd like to connect my X3000 to my LAN to make the LAN and the WAN accessible at the same time but I'm not sure how to do it. My LAN uses 192.168.(not 8).x and the X3000 uses 192.168.8.x. I'm guessing that I need to let my Amplifi Alien assign an IP address to the X3000 for it to communicate with other network devices. If this is correct, where do I do this?

Thanks.

2

In this case, can you just unplug yourAmplifi and use X3000 only?

You can change the LAN IP of X3000 (admin portal->network->LAN IP) to the same as your old network 192.168.x. and all the devices should work fine.

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5

Thanks. That hadn't occurred to me because I've got so many static addresses set up. I can't think of why assigning dynamic addresses temporarily would mess things up. It's been a minute since I set up the network so I'm struggling to remember why I set up static addresses in the first place.

6

For anyone who stumbles across this in the future, the solution was really simple. I unplugged the Ethernet cable that ran from my cable modem to the primary router's WAN port. Then I plugged in the X3000 to that same WAN port. The X3000 assigned a 192.168.8.x address to the primary router, but the primary router continued to perform routing functions for the network using the pre-existing IP address scheme, just as it always has. The X3000 remained in router mode. In fact, everything remained exactly as it had always been configured, both the X3000 and the primary router. Easy.

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