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How do I disable automatic IP address updating (when conflict is detected with ISP)?
I use a non-routing range on my LAN and use static IP addresses for certain hosts. The automatic change accompanied by: Important Update To avoid conflict with your Internet Service Provider,...
You may not like the automatic changing of IP addresses, but the behavior is a sign that your LAN and WAN subnets conflict with each other. I don't know how your other router was able to work correctly with such a conflict, but you should fix it. For example, if your ISP is using subnet 192.168.1.0/255.255.255.0, then set your LAN to use 192.168.2.0/255.255.255.0. Problem solved.
joelsantiago wrote:The modem never passes a private IP address. I've verified this with the ISP.
I've used several different routers with this network, this exact configuration and this same ISP (and modem) and have not had this issue before.
Well, it seems it might be? That is why you are getting the warning message. Some Modems do issue TEMPORARY IP's in the private range when they first come up and had not connected to the ISP fully. This would explain what you are seeing possibly? That is they sort of act like a switch when first powering up and then switch to 'router' mode sending out the WAP IP Address.
Here is a report of a similar problem fixed with an upgrade to the firmware, https://www.experts-exchange.com/questions/27920736/Netgear-router-keeps-changing-LAN-ip-address.html
Might want to google your modem model and see if it does issue temp IP's?
I'm out of ideas here.
Might be. But here's the thing, like I said, I've tried this configuration with a number of different routers -- 3 or 4 Linksys routers, 2 or 3 Asus routers, at least 1 other Netgear router -- and this does not happen. The only thing that's changed since this started is the router. I've even tried switching back to one of my previous routers for a few weeks, manually triggered WAN IP changes (such that I can) and this just does not happen. Makes it hard to conclude that it's the modem, right?
Here's another thing, when the router changes the range, say from 10.x.x.x to 192.x.x.x automatically I can immediately change it back to my preferred range (10.x.x.x) and everything works fine. The change it applies is completely unnecessary.
All I want to be able to do is change the router's behavior and not have it automatically change its own IP address (unless I paperclip reset it).
I'm using the latest non-beta firmware available for this model and have tried re-applying it several times.
Appreciate you trying to help, man. Thanks.
Netgear made this change almost 2 years ago. You could try a older FW version.
You may not like the automatic changing of IP addresses, but the behavior is a sign that your LAN and WAN subnets conflict with each other. I don't know how your other router was able to work correctly with such a conflict, but you should fix it. For example, if your ISP is using subnet 192.168.1.0/255.255.255.0, then set your LAN to use 192.168.2.0/255.255.255.0. Problem solved.