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Jack-L-Lantern's avatar
Jul 10, 2025

RS700 firmware update 1.0.9.6 breaks Windows Server DCHP

For context, I use Windows Server 2019 DHCP for my DHCP Server, so I disable the DHCP feature on the router. After the 1.0.9.6 update I found that the Windows DHCP Server was broken and gave the error "The DHCP/BINL service has encountered another server on this network with IP Address, 192.168.1.1, belonging to the domain: ." Well 192.168.1.1 is the router, so I double check and DHCP is  still disabled on the router, but Windows Server thinks the router is a DHCP server anyway, so I believe there is some bug in 1.0.9.6 that is making the router broadcast itself as a DHCP even when it is disabled.

 

I downgraded to 1.0.7.96 and so far I don't have the problem anymore, but I'll have to check more later since I did find that on 1.0.9.6 if I temporarily unplugged the ethernet from the server that Windows would happily start the DHCP service, so having it work now doesn't fully convince me that it wasn't a configuration error on my part.

 

For some additional notes: The IP address given to my PC was not what my Windows DHCP server would provide, or what the router would have provided had DHCP been enabled, but it looked like something a DHCP server might provide since it was 192.168.1.100 (which is still in range of the router's default configuration, but I think it would have started with x.x.x.2 not, x.x.x.100), but maybe that is something windows falls back to, but if I remember right in ipconfig the info it did list the router, and not the Windows Server, as the DHCP server.

 

I'm mostly posting this information in case anyone else has experienced this problem, and so that maybe Netgear will look into the issue.

 

5 Replies

  • BH_C's avatar
    BH_C
    NETGEAR Expert

    Thanks Jack-L-Lantern​ for sharing this issue, we will look into it. If necessary, our engineering team will reach out to you through PM.

     

    Thanks FURRYe38​  as usual for tagging me.

  • BH_C's avatar
    BH_C
    NETGEAR Expert

    Hi Jack-L-Lantern​ ,

     

    I just PM you a link for the RS700 trial firmware that fixes the issue. Could you give it a try to see if it fixes the issue on your network? We could reproduce the issue and we have confirmed the trial firmware fixes the issue in our setup.

     

    Thank you.

    • vtburtonra's avatar
      vtburtonra
      Aspirant

      I have the same issue.  I've confirmed via Wireshark traces that the router is continuing to respond to DHCP requests even though the DHCP server in the router is disabled.  Router is an RS700S running firmware 1.0.9.6.  I would like to try the trial firmware if possible.  For now, I've disconnected the RS700 and replaced with an older router that does not have this issue.  

      • BH_C's avatar
        BH_C
        NETGEAR Expert

        I just PM you the link for the trial firmware. Thank you for reaching out to us.