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stepheat's avatar
stepheat
Aspirant
Mar 18, 2020
Solved

Duplicate IP Address

I just got this router yesterday and setup was easy. However, when I look at the Advanced tab I see duplicate IP addresses:

The first is my Samsumg phone (checked the MAC address) and the second is my Epson wireless printer (didn't check the MAC, but that's what it's got to be). What needs to be done to resolve this?

 

EPSON72BA97192.168.1.5DC:EF:CA:E9:59:1E

 

EPSON72BA97192.168.1.544:D2:44:72:BA:97
  • Just wanted to follow up saying that I managed to resolve the issue by rebooting both the cable modem and the router in sequence leaving the MAC at the PCs. I strongly suspect that the XR500 router was not at fault for the issue but rather that for some reason the ISP/modem capped ipv4 traffic until the reboot.

     

    I am now running with QoS and ipv6 fully enabled without any issues and get equivalent speed tests over both ipv4 and ipv6.

16 Replies

  • > [...] when I look at the Advanced tab I see duplicate IP addresses:

     

       _Where_ are you looking?  An "Attached Devices" report, or some other
    thing/place?  What's there other than the duplicate-address devices?

     

       Does the problem persist after shutting down all the devices and
    restarting them?  Are all the client devices configured to use DHCP?

    • stepheat's avatar
      stepheat
      Aspirant

      I launch that Netgear Genie and then click on the Attached Devices tab. It shows 7 devices...one wired (my PC) and six wireless. Two of the devices have the same name of EPSON72BA97 with an IP address of  192.168.1.5. One of those is my phone, the other my Epson printer. As I stated before, the MAC addresses are different and I know which is my phone when I look at it's MAC address. Sooo....if I turn my printer off and do a refresh my phone still shows the Epson name and IP address. Then if I turn my printer back on and do a refresh I get the EPSON72BA97 and 192.168.1.5 for both. I also get the same results if I turn them both off and back on separately after doing refreshes of the Genie program. It never ever recognizes my phone as a Galaxy S6. It does recognize my wife's phone as a Galaxy S3. I think I've done all I can...perhaps a Netgear technician can figure it out. Weird.

      • antinode's avatar
        antinode
        Guru

        > [...] I think I've done all I can... [...]

         

           Did you shut down _all_ the devices, including the router, and
        restart them?

         

        > [...] Are all the client devices configured to use DHCP?

         

           Still wondering.