Allow already connected devices to rejoin. #1294 #1334

lib/zigbee.js

@@ -107,7 +107,12 @@ class Zigbee {
                 callback(null, true);
             }
         } else {
-            callback(null, false);
+            if (this.getAllClients().find((d) => d.ieeeAddr === devInfo.ieeeAddr)) {
+                // Allow already connected devices to rejoin.
+                callback(null, true);
+            } else {
+                callback(null, false);
+            }
         }
     }