code: function scheduleServerConnectivityChecks() {
          if (connectivityIntervalId === null) {
              connectivityIntervalId = asyncExecService.setInterval(function () {
                  updateRegistrations();
                  connectToServers();
              }, INTERVAL_BETWEEN_SERVER_CONNECTIVITY_CHECKS);
          }
          else {
              throw new Error("BUG ::: Attempt was made to start connectivity checks twice");
          }
      }
docs: Schedule periodic server connectivity checks