DHCP and Static IP issues

PROTIP :

Using ipconfig /all will give you the DHCP server's IP :

Code: 
Wireless LAN adapter Wireless Network Connection 3:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM943228HM4L 802.11a/b/g/n 2x2
WiFi Adapter #2
   Physical Address. . . . . . . . . : [redacted]
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.85.98(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.248.0
   Lease Obtained. . . . . . . . . . : 21 October 2015 07:54:43 AM
   Lease Expires . . . . . . . . . . : 22 October 2015 07:54:50 AM
   Default Gateway . . . . . . . . . : 192.168.80.254
   [b]DHCP Server . . . . . . . . . . . : 192.168.80.254[/b]


   DNS Servers . . . . . . . . . . . : 196.43.50.190
                                       196.43.38.190
   NetBIOS over Tcpip. . . . . . . . : Enabled

Use this if you want to make sure the correct device/server is dealing out DHCP. Finding the actual device is another matter.

When that device has been located/found, then a login to its management console is in order, and then looking for DHCP scope under LAN interface, and then disable said unwanted DHCP scope.
 
I would set up all WLAN AP's with static IP's which falls outside the DHCP pool, or, even better, on a separate LAN (or VLAN) to prevent ne'er-do-wells from hacking the network.
 
Thank you very much The Librarian,

I've set up my WLAN AP's to static IP, outside of the DHCP pool.

The DHCP server turned out to be the same as the default gateway. I think this it is the Cisco 1900 but I'm just guessing. Anyhow the way I understand it, it doesn't really matter if it's the Cisco or the Routerboard, as long as it's only one of them.

I've been trying to find a way to login into the Routerboard's management console, but for the life of me I can't figure it out. It does have a micro USB port on it which I assume is for this purpose but it's not working to just plug it into a PC, I'm assuming some drivers are required, and the product website is no help there.
 
Thank you for your interest but I'm in CT and anyway I don't actually see a need at the moment to get into the config settings of the Routerboard, as it is the only DHCP server now that I correctly config'd the WLAN AP's. So everything is cool as a cookie, all PC's are properly getting automatic IP's and DNS settings.

Thanks to everyone that helped me solve this problem by offering suggestions and advice.
 
Cool, good to hear.

Do a detailed network map together with all usernames/passwords and IP addresses now. ;) Use Dia or Visio for these.
 
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