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The IP address conflicts with the WAN IP subnet. Please enter a different IP address.
Note that the "asspciated Products" field refused to take any version of my actual product name or model number. I ended up entering "netgear" and selecting the first choice out of a total of two choices. So disregard entirely any mention of the Netgear Indoor Dual Band Omni Antenna. There was no way to post this without having something that it would accept in that field. (Piece of sh1t, whoever set up this message board did an awful job)
Error Message: The IP address conflicts with the WAN IP subnet. Please enter a different IP address.
Yes, I have read as many other postings as I could find with similar headings.
This is for the Netgear AC1750 Smart WiFi Router Model R6400v2.
The entire network consists of this:
My own cable modem.
This router.
A few computers attached to it.
Router Information:
Hardware Version R6400v2
Firmware Version V1.0.4.128_10.0.104
GUI Language Version V1.0.4.122_2.1.38.1
LAN Port
MAC Address redacted
IP Address 192.168.1.1
DHCP On
Internet Port:
MAC Address redacted
IP Address redacted
Connection DHCP
IP Subnet Mask 255.255.240.0
Domain Name Server 192.168.1.24 9.9.9.9 (this is my pihole in conjunction with 9999). This has been in place for over a year without issue.
Issue:
I have long used the WAN setup menu to specify static ip addresses internally for IP reservations. Today, even after making no changes whatsoever, simply by pressing the "apply" button, I get the error message. This first appeared today when I tried to add a new static address for a new machine. After completely abandoning the addition of the new machine, I could not click the apply button without receiving the pop-up error message. Under no condition does the error message not appear, even if there are zero address reservations in the list.
Here are a few relevant settings:
From the Advanced -> Setup -> LAN page:
LAN TCP/IP Setup:
IP Address 192.168.1.1
IP Subnet Mask: 255.255.255.0
Use Router as DHCP Server: checked
Starting IP Address: 192.168.1.2
Ending IP Address: 192.168.1.254
I have tried changing every variable. Nothing causes the error message to not pop up, and I have no way to now specify a new static reservation for any machine on my network.
4 Replies
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Try changing the subnet mask to 255.255.255.0
Try changing the Router IP to 192.168.0.1 and see what happens...
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
I do not have any ISP-provided hardware. I own the cable modem and I own the one and only router. The only thing the ISP provides is the wire connected to my home.
You suggested changing the subnet mask to 255.255.255.0. I can see this is going to get messy right away. It already is 255.255.255.0. The subnet mask you might be referring to, which is stated as 255.255.240.0 in my initial writeup seems to be the subnet of the ISP-provided public IP address (the IP that shows up if I go to whatismyipaddress.com). I have no way of modifying that subnet. It seems to be totally separate and unrelated to the subnet mask that is listed with my router's internal IP address of 192.168.1.1 (this has been my router's internal address for decades, along with my subnet mask of 255.255.255.0).
MY ROUTER, on the other hand, is at 192.168.1.1 with its own subnet of 255.255.255.0. It doesn't matter whether I set this internal subnet mask to the 255.255.240.0 subnet to match that of the ISP. As for changing my router IP to 192.168.0.1, I've tried that, and it doesn't fix the issue.
Whom is the ISP?
What is the brand and model# of the ISP modem your using?
For most cable ISPs, Dynamic WAN IP addressing is mostly used, not a static configuration. So setting the WAN or Internet configuration to Automatic is all that's needed. Only if the ISP configures a static IP address on the WAN side would that be needed. Something to ask the ISP about.
Was making sure about the LAN side configuration so your good there.
The WAN side is not used for any configurations on the LAN side.LAN side under LAN Setup is where you can configure IP address reservations for devices you have connected there.
What configuration were you trying to input before selecting the apply button?
