I am trying the network things by following the instruction http://docs.moodle.org/en/admin/mnet/peers
On MoodleA go to Admin > Network > Peers - put the URL of MoodleB under "Add New Host" and click Add. It works
then Do the equivalent on MoodleB, when I put the URL of MoodleA under MoodleB Admin>Network >Peers,Click add new, then I got error message
There was a problem retrieving the public key.
Maybe the host does not allow Moodle Networking or the key is invalid.
So I can not add the host of Moodle A to moodle B, where I suppose to check? Both moodle A and Moodle B running moodle 1.82+