diff --git a/dist/index.d.ts.map b/dist/index.d.ts.map
index fa57d8e..c47cef3 100644
--- a/dist/index.d.ts.map
+++ b/dist/index.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AACA,OAAO,OAAO,MAAM,uBAAuB,CAAC;AAkB5C,MAAM,CAAC,OAAO,OAAO,GAAG;IACpB,OAAO,CAAC,QAAQ,CAAM;IACtB,OAAO,CAAC,OAAO,CAAkC;IACjD,OAAO,CAAC,aAAa,CAA0C;IAC/D,OAAO,CAAC,eAAe,CAAM;IAC7B,OAAO,CAAC,OAAO,CAAS;gBAEZ,IAAI,KAAK;IAMrB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAKtB,IAAI,MAAM,IAAI,MAAM,EAAE,CAErB;IAEY,QAAQ,CAAC,MAAM,EAAE,MAAM,GAAG,OAAO,CAAC,OAAO,CAAC;IAiChD,WAAW,CAAC,MAAM,EAAE,MAAM,GAAG,OAAO;IAgBpC,WAAW,IAAI,IAAI;YAIZ,iBAAiB;IAazB,OAAO,CAAC,MAAM,EAAE,MAAM,EAAE,OAAO,KAAK,GAAG,OAAO,CAAC,OAAO,CAAC;YAU/C,eAAe;CAoBhC;AAED,wBAAgB,WAAW,CAAC,OAAO,EAAE,MAAM,GAAG,UAAU,CAEvD"}
\ No newline at end of file
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AACA,OAAO,OAAO,MAAM,uBAAuB,CAAC;AAkB5C,MAAM,CAAC,OAAO,OAAO,GAAG;IACtB,OAAO,CAAC,QAAQ,CAAM;IACtB,OAAO,CAAC,OAAO,CAAkC;IACjD,OAAO,CAAC,aAAa,CAA0C;IAC/D,OAAO,CAAC,eAAe,CAAM;IAC7B,OAAO,CAAC,OAAO,CAAS;gBAEZ,IAAI,KAAK;IAMrB,KAAK,IAAI,OAAO,CAAC,IAAI,CAAC;IAStB,IAAI,MAAM,IAAI,MAAM,EAAE,CAErB;IAEY,QAAQ,CAAC,MAAM,EAAE,MAAM,GAAG,OAAO,CAAC,OAAO,CAAC;IAiChD,WAAW,CAAC,MAAM,EAAE,MAAM,GAAG,OAAO;IAepC,WAAW,IAAI,IAAI;YAIZ,iBAAiB;IAazB,OAAO,CAAC,MAAM,EAAE,MAAM,EAAE,OAAO,KAAK,GAAG,OAAO,CAAC,OAAO,CAAC;YAc/C,eAAe;CAkC9B;AAED,wBAAgB,WAAW,CAAC,OAAO,EAAE,MAAM,GAAG,UAAU,CAEvD"}
\ No newline at end of file
diff --git a/dist/index.js b/dist/index.js
index 2a89198..a0fd645 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -24,6 +24,9 @@ export default class DHT {
         this._options = opts;
     }
     ready() {
+        if (this._inited) {
+            return Promise.resolve();
+        }
         this._inited = true;
         return this.fillConnections();
     }
@@ -46,7 +49,7 @@ export default class DHT {
         if (isNaN(parseInt(port))) {
             return false;
         }
-        this._relays[pubkey] = `wss://${domain}:${port}/`;
+        this._relays.set(pubkey, `wss://${domain}:${port}/`);
         if (this._inited) {
             await this.fillConnections();
         }
@@ -86,9 +89,13 @@ export default class DHT {
         return node.connect(pubkey, options);
     }
     async fillConnections() {
-        let available = [...this._relays.keys()].filter(x => [...this._activeRelays.keys()].includes(x));
+        let available = [...this._relays.keys()].filter((x) => [...this._activeRelays.keys()].includes(x));
         let relayPromises = [];
-        while (this._activeRelays.size <= Math.min(this._maxConnections, available.length + this._activeRelays.size)) {
+        if (0 > available.length) {
+            return;
+        }
+        while (this._activeRelays.size <=
+            Math.min(this._maxConnections, available.length + this._activeRelays.size)) {
             const relayIndex = await randomNumber(0, available.length - 1);
             const connection = available[relayIndex];
             if (!this.isServerAvailable(connection)) {