R6400v2 begins to power cycle when the IP address is changed

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Inetwl wrote:

Hello,

I have an R6400v2 that was to be secondary to another router on my network.  When it was attached to the other router, it would begin to power cycle. When its IP address was changed away from 192.168.1.1, it would also power cycle.

 

While power cycling is odd, having two routers on your network breaks the rules for recommended practice.

Two routers on your network can cause headaches. For example, you can end up with local address problems. Among other things, the other router can misdirect addresses that the Netgear router usually handles, such as routerlogin.net or the usual IP address for a router, 192.168.1.1.

This explains some of the other drawbacks.

What is Double NAT? | Answer | NETGEAR Support

Unless you have specific reasons for using two routers – to create two separate and independent networks for example – it is often easier to use just one router and then to set up the second router as a wifi access point. Netgear advises this, as does just about every site you will visit.

That has its drawbacks:

Disabled Features on the Router when set to AP Mode | Answer | NETGEAR Support

But your main router should handle the traffic as required.

I would try that and see if the reboot still happens.