Nether Portals not linking 1.16.4
Solution 1:
As long as another portal is within 128 blocks of another one, it can still be linked. See this wiki article. Try creating another portal at least 128 blocks away from the previous one.
As long as another portal is within 128 blocks of another one, it can still be linked. See this wiki article. Try creating another portal at least 128 blocks away from the previous one.