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WAN IP and Default Gateway are the same?

Hello, I will describe my problem shortly. I own a TP-LINK Archer C7 AC1750 Wireless Dualband Router. But when I connect to internet, the router shows my WAN IP Address and Default gateway address identically, as well as the subnet mask is 255.255.255.255, which means something is wrong. Because when I use other routers to connect, the WAN IP is different to gateway (the gateway is usually x.x.0.1) and the subnet mask is 255.255.255.0 (instead of 4 255s).

I still can access to internet normally, using lastest firmware (130729 from TP Link website). Can anyone tell me why is it happening? Is something wrong with my C7's WAN port?
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More about wan default gateway
  1. The WAN IP address is assigned by your ISP (usually dynamically for home users) and most IPs have a mask more like 255.255.240.0 to accommodate more users on each subnet.

    Your LAN gateway will be something like 192.168.x.1 with a mask of 255.255.255.0. That is all internally controlled by you.

    I have not yet used that router, take a look at your manual on doing a manual set up through the configuration pages.

    What model modem do you use (and DSL or cable)?
  2. RealBeast said:
    The WAN IP address is assigned by your ISP (usually dynamically for home users) and most IPs have a mask more like 255.255.240.0 to accommodate more users on each subnet.

    Your LAN gateway will be something like 192.168.x.1 with a mask of 255.255.255.0. That is all internally controlled by you.

    I have not yet used that router, take a look at your manual on doing a manual set up through the configuration pages.

    What model modem do you use (and DSL or cable)?


    Hello, thanks for your reply. I know that my LAN IPs and WAN IP are totally two different things. Thats why I ask about my problem. I'm running fiber and my router uses PPPOE to connect to the internet (thru an ethernet/fiber converter of course).

    Funny thing is, when I change to my Linksys router everything is better (the reason it's not "fine" but just "better" is because the subnet mask is not shown), I get correct default gateway and wan address. But any TP Link router (I have a WR741ND and an Archer C7) would give me the same problem (WAN IP is identical to WAN Gateway), looks like it's something related to TP-Link's design or my ISP or maybe even both...
  3. Best answer
    Yeah, I would try to get to a knowledgeable tech support person at your ISP -- not the first line folks that read off scripts.
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