RBK50 how do I change my IP Address

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TLane1957 wrote:

The device in front of my Orbi router is a Motorola cable modem.  The model number is MB8600.

 

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That is a modem/router. Look at all those LAN ports on the back.

Two routers on your network can cause headaches. For example, you can end up with two DHCP servers and that can create local address conflicts. Among other things, this can mean that trying to get at addresses like routerlogin.net or the usual IP address for a router, 192.168.1.1, gets misdirected by the other router.

Unless you have specific reasons for using two routers – to create two separate 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.

Sometimes it is possible to put the modem/router into modem only (bridge) mode and then to use the second device as the router. But some Internet service providers, such as BT in the UK, supply customers with a modem/router that just won't work in bridge mode. There may be ways to get the device to cooperate, but sometimes it is just easier to put the second router in AP mode. But that has its own drawbacks:

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

The Motorola manual tells how how to use this with a router.

www.motorolacable.com/documents/MB8600-QuickStart.pdf

See the section If You Want To Connect a Router.

Life would probably be easier if you did that.