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DanR01's avatar
DanR01
Aspirant
May 20, 2017

Duplicate 192.168.1.1 address causing wifi disconnect

There is a bug in the range extender where it is announcing itself as a router by sending ARP packets with duplicate 192.168.1.1 addresses. It is being used with the Netgear Nighthawk router D7800 model. This causes frequent disconnects with Apple devices. Linux and Windows are unaffected. Switching off the extender solves the problem.

 

It is disappointing that Netgear products do not work properly together. Does anyone have a solution?

 

Wireshark trace:

 

Frame 706: 42 bytes on wire (336 bits), 42 bytes captured (336 bits) on interface 0
Ethernet II, Src: 16:da:43:0b:c3:58 (16:da:43:0b:c3:58), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
[Duplicate IP address detected for 192.168.1.1 (16:da:43:0b:c3:58) - also in use by b0:7f:b9:43:ef:2b (frame 705)]
[Frame showing earlier use of IP address: 705]
[Expert Info (Warn/Sequence): Duplicate IP address configured (192.168.1.1)]
[Duplicate IP address configured (192.168.1.1)]
[Severity level: Warn]
[Group: Sequence]
[Seconds since earlier frame seen: 0]
Address Resolution Protocol (request)

 

5 Replies

  • Change the IP address on either the D7800 or the extender.  Both use static addresses, so you may have inadvertently set the same address on both devices.

    • DanR01's avatar
      DanR01
      Aspirant

      I've changed the router IP address to 192.168.2.1 and the problem persits with dupicate ARP requests. Screenshot from 2017-05-20 17-08-19.png

      • TheEther's avatar
        TheEther
        Guru

        I can see the picture you posted earlier.

         

        Does MAC address, Netgear_43:ef:2b, belong to the D7800 or the EX7300?

         

        Do you know which device belongs to MAC address to 16:da:43:0b:c3:58?  Log into the extender and see if the MAC address belongs to the extender.