I been try for a few weeks to open a portal but I can't. I can open the portal menu to open a portal but when it returns to start the portal I get a message Error, portal blocked! It does not matter what portal I try to go to, where the portal is build at or the size of the portal I always got the Error. I'm on node 1 and I have had the problem from restart.
Just to help others this is the right to make a portal. The four corners are not need to work the portal Thank you SirWill