Netgear CM1200 to Rax200 WAN aggregation not working ?

Last night I finally got mine working by following these steps off the netgear website.

Note: These are not the steps for the RAX200 but for the RAX80.

Follow the second steps listed after the router first. I'll also copy and paste them below. The steps for setting up the router are the same as for the RAX200 but do that part second. You gotta setup the modem first. To my surprise after getting it working I was amazed at actually how much faster websites load. My speed isn't much faster but websites load much faster. There is also less jitter in the connection. Once I activated my modem for Ethernet aggregation I then hooked up both ethernet cables from the modem to the router WAN 1 and Port 1. I then restarted my modem. After that I think I restarted my router after I restarted the modem. Then you go into the router settings and click internet, then under WAN preferences you selct the Multi-Gig Internet (1Gps + 1Gps), then select apply at the bottom. Then if it works it will say in blue Status: WAN aggregation is active. 

Here is a link: https://kb.netgear.com/000060393/How-do-I-set-up-Ethernet-port-aggregation-between-my-NETGEAR-Nighthawk-Multi-gig-Speed-Cable-Modem-and-my-NETGEAR-Nighthawk-AX8-router 

Follow these steps first: 

To set up Ethernet port aggregation on your NETGEAR Nighthawk Multi-Gig Speed Cable Modem:

1. Launch a web browser from a computer that is connected to your cable modem.
2. Enter 192.168.100.1
   A login window displays.
3. Enter the user name and password.
   Note: The user name is admin and the default password is password. The user name and password are case-sensitive.
   The BASIC Home page displays.
4. Select ADVANCED > Advanced Setup > Ethernet Port Aggregation.
   The Ethernet Port Aggregation page displays.
5. Select Enable (LACP-IEEE 802.3ad).
   The cable modem communicates with the router or computer that is connected to the LAN 2 port on your cable modem and checks to see if Ethernet port aggregation is supported on the router or computer.
6. Click Apply.
   Your settings are saved.
   Note: After you connect the linked ports (WAN and LAN port 1) on your AX8 router to the two linked ports on your cable modem, the Ethernet Port Aggregation Status will show as Active if your router has enabled WAN Aggregation.

Follow these steps second:

To set up WAN aggregation on your NETGEAR Nighthawk Tri-Band AX12 router:

1. Launch a web browser from a computer that is connected to your router’s network.
2. Enter http://www.routerlogin.net.
   A login window opens.
3. Enter the router user name and password.
   The user name is admin. The password is the one that you specified the first time that you logged in. The user name and password are case-sensitive.
   The BASIC Home page displays.
4. Select Internet.
5. Under the WAN Preference section, select the radio button for Multi-Gig Internet (1 Gbps + 1 Gbps).
6. Click Apply.

WARNING: Do not connect the devices to each other using more than one Ethernet cable until after you set up the link aggregation group (LAG) on each device. If you form multiple connections between the two devices and neither device has loop prevention, you create a network loop. Network loops can slow or stop normal traffic on your network.

1. Set up link aggregation on the modem that you want to connect to your Tri-Band AX12 router.
2. Using two Ethernet cables, connect the WAN port and Port 1 to the aggregated ports on the other modem.
   Note: After you connect the linked aggregate ports (WAN and Port 1) on your Tri-Band AX12 router to the two linked ports on your modem, the Ethernet Port Aggregation Status changes from Inactive to Active.

Hope this helps. 

Good luck.