How Do You Stop a Nether Portal from Linking?
Pairing portals
Build at desired location X,Y,Z in the Overworld. Then travel to the Nether. And then dig your way to X/8, Y, Z/8, and build a portal there. A less precise method would be to temporarily deactivate all portals within a 128 block "radius" from within the Nether.

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Hereof, how do you fix a nether portal connection?

So the game will create a new portal in the overworld. This is what is happening in your world. To fix that, write down the coordinates of the portal in the overworld (use F3 to get them) and divide them by 8. Enter the Nether, go to the calculated coordinates and create a portal from the Nether.

Additionally, do Nether portals spawn naturally? A temporary Nether portal which spawns naturally in each generated Biome, each Nether portal doesn't last long as they close in a specific time frame maybe around (10 to 15 minutes).

Subsequently, question is, can you make 2 Nether portals?

If you build a second portal in the overworld, anywhere within 1,024 blocks of your first one, then when you go into the nether you'll come out at the original nether-side portal.

Do Nether portals work underwater?

The portal must be placed underwater. Going through the portal will create a new portal in the abyss dimension at 255. The Nether has a feature where for every block you travel in the nether, you have traveled 8 in the overworld.

Related Question Answers

Do Nether portals connect?

Pairing portals
To set up pairs of Nether portals properly so that they reliably travel to each other, it is best to build both portals manually. Build at desired location X,Y,Z in the Overworld. Then travel to the Nether. And then dig your way to X/8, Y, Z/8, and build a portal there.

Why do all my nether portals go to the same place?

The key is that the game looks for the closest portal in the destination dimension, so if you build both portals in the "right" places (overworld x and z divided by 8 in the nether), before lighting either of them (Obviously you need an original set of portals to do this), then you can connect them properly.
Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.