Question Port forwarding issue, please help

[Livaris]

I recently moved from my house into an apartment and got my new internet connection set up. I started trying to port forward and am now going through tp-link.

I found my IP address online as 103.210.27.78 but my IPv4 Address is 192.168.0.101. The port I'm trying to forward is 25565, but when I put in the IP address to forward, it tells me "The IP address is not in the same subnet with LAN IP address. Please input another one."

I've tried forwarding the IPv4 address instead, which doesn't cause an error, but the port doesn't seem to work as a result.

Please help as I am extremely stuck and confused.

 

[SamirD]

Sounds like you have a double nat. If you isp has provided you with some equipment it is also probably providing a 192.168.x.x address. If so, you need to port forward on both the isp router and your tplink for it to work.

Ideally, you will either want your isp router to give out the 192.168.x.x addresses or your tplink. You can do this two ways. One is by setting your isp router to 'bridge mode' to allow your tplink to directly have the public ip. The second is to let your isp equipment do the routing and set you tplink to 'access point mode'.

 

[Genx87]

What IP address are you attempting to forward and to which IP?

 

[mv2devnull]

And, on which device?

The description of the system looks completely normal.
There is local PC that has 192.168.* LAN address that it got from DHCP server that runs in the router.
There is public IP address that the router has and that it got from ISP.
The router has 192.168.0.* address in the LAN too.
Traffic from PC to out goes through the router, which does NAT (aka sNAT or Masquerade). That is why every device in the LAN looks like the router for the "online".

If you do want that when an outsider connects to the router (103.210.*) port X, the router redirects connection to your PC port Y, then router must forward 103.201.*:X to 192.168.0.101:Y.

If you did already do that, but got claim that 192.168.0.101 is not in LAN, then the router's LAN IP address is not in 192.168.0.* and you have a second router between your PC and the outmost router.