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mrftoy's avatar
mrftoy
Tutor
Dec 06, 2020
Solved

Netgear R6250 switching to AP mode does not turn off DHCP

Firmware version : V1.0.4.38_10.1.30 OS: Windows 10 Pro 64 bit   Firmware Version V1.0.4.38_10.1.30   I have switched the R6250 to AP mode as shown in the attached file.  According to the manua...
  • mrftoy's avatar
    mrftoy
    Dec 06, 2020

    You were correct!  I had the line going from my existing router to a voip box that was handing out the 192.168.10.* ip addresses.  Thanks a lot for getting me to look at the wiring!

     

mrftoy's avatar
mrftoy
Tutor
Dec 06, 2020

Thanks for responding!  Look closer at the second picture.  It show DHCP on.  That is why it is generating a different set of ips.

Please advise.

mrftoy's avatar
mrftoy
Tutor
Dec 06, 2020

I only have my existing router, a Actiontec C3000A from Century Link and this router in my system.  I will try your advice today and see what ip address I get when I plug it into another laptop.  Will keep you posted. Thanks!

  • antinode's avatar
    antinode
    Guru
    Dec 06, 2020

    > [...] Look closer at the second picture. It show DHCP on. [...]

     

       I did.  Hence:

     

    > [...] I'd interpret "DHCP ON" [...]

     


    > [...] That is why it is generating a different set of ips.

     

       I'm waiting for evidence that the R6250 is the culprit and not the
    victim.

     

       Another interesting experiment would be to disconnect the R6250 from
    everything except (it power adapter and) one DHCP-using computer, and
    see if that computer gets a valid (not self-assigned) IP address.  If
    the R6250-as-WAP really _is_ acting as a DHCP server, then the computer
    should _not_ get a self-assigned IP address.

     

    > I only have my existing router, [...]


       I'm sure that you believe that, but that's not the same as proof.
    Hence the question (still unanswered):

     

    > [...] Are you looking at both ends of the cable connecting the
    > R6250-as-WAP and your (unspecified) "the existing router"?

     

       As always with Netgear routers, the firmware could be defective, so
    that it does not disable the DHCP server when in WAP mode, but who
    decided on "192.168.10.x"?  It's easier for me to believe that you have
    some other gizmo causing trouble than that the R6250-as-WAP plucked that
    subnet out of thin air, and is using it for its own (should-be-disabled)
    DHCP server.

     

       These forums see many oddball DHCP complaints, but I can't recall any
    where a router-as-WAP was running a DHCP server.  But I'm always open to
    actual evidence.