Bad Request — editTracker failed, reason='Unable to connect to license master=https://172.31.17.138:8089 Error connecting: Connect Timeout'
so i went and edited the inbound rules on the cluster manager by adding the management port 8089 as a custom tcp port and boom! it worked and the "change was successful".
Nice to heard that you solve it. Usually this means that there is no connection between those nodes. Main reasons for that is fw between node (network or host level). Another option is no route between hosts.