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FancyPrairie's avatar
FancyPrairie
Follower
Apr 23, 2022

daisy chain tp-link with netgear r6250

I have out building (about 100' from the house).  This was a chicken coop at one time but I recently turned it into a game room.  My internet provider has a dish mounted to a tv tower right outside my game room.   They ran an ethernet cable to a tp-link modem / router inside the game room.  A cable runs from the back of the tp-link to the netgear router located inside the house.  This was working but is no longer.  I'm trying to trouble shoot what the problem may be.   I think I have tracked down the problem.   I get the following message when I select the "Internet" tab via the Netgear Genie... No Ethernet Cable Is Plugged into the Router Internet Port.  I currently have an Ethernet cable from the tp-link to the Netgear.  I have verified that the cable is ok.  Therefore, I am assuming the the ethernet (internet) port on the back of the Netgear router is bad.  Do they go bad?  If they do go bad, can they be fixed? 

1 Reply

  • plemans's avatar
    plemans
    Guru
    Apr 23, 2022

    Is the R6250 in access point mode? Otherwise you're in a double nat. 

    A double nat happens when you cascade more than 1 router.
    https://kb.netgear.com/30186/What-is-Double-NAT
    Fixes? There’s 3 options but only use 1.
    1. Put the modem/gateway in modem only/pass through mode. This disables its routing functions. Not an option if you want to keep using the tp-link.
    2. Leave the modem/gateway in router mode but put the Netgears IP address into its DMZ. This forwards the data to the netgear. You can either leave the modem/gateway’s wireless enabled or disabled. Just make sure its using a different wifi channel to prevent interference. Problem with this option is not all the devices will be on the same subnet if you're using both routers.
    3. Put the Netgear into access point mode. This disables its routing functions. Wifi/ethernet still works but it does disable some features.
    https://kb.netgear.com/26765/Which-features-are-disabled-on-my-NETGEAR-router-when-it-is-set-to-AP-Mode