diff --git a/packages/playground/package.json b/packages/playground/package.json
index 34f5593cdf..e2a76fbd54 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -41,6 +41,7 @@
     "mosha-vue-toastify": "^1.0.23",
     "pinia": "^2.0.32",
     "qrcode": "^1.5.1",
+    "url-join": "^5.0.0",
     "validator": "^13.9.0",
     "vue": "^3.2.47",
     "vue-chartjs": "^5.2.0",
diff --git a/packages/playground/src/components/node_details_cards/iperf_details_card.vue b/packages/playground/src/components/node_details_cards/iperf_details_card.vue
index 3f8cfe6407..0f03ad7385 100644
--- a/packages/playground/src/components/node_details_cards/iperf_details_card.vue
+++ b/packages/playground/src/components/node_details_cards/iperf_details_card.vue
@@ -70,6 +70,10 @@ export default {
           downloadSpeed: format(node.download_speed),
           uploadSpeed: format(node.upload_speed),
         }));
+      if (array.length === 0) {
+        console.error("Empty array returned from the IPerf test");
+        throw new Error("Can't get the test results, please try again later.");
+      }
       IperfDetails.value = array;
       return IperfDetails.value;
     };
diff --git a/packages/playground/src/utils/manual.ts b/packages/playground/src/utils/manual.ts
index 0af98de2e3..6bcf104c94 100644
--- a/packages/playground/src/utils/manual.ts
+++ b/packages/playground/src/utils/manual.ts
@@ -1,18 +1,20 @@
-const BASE = window.env.MANUAL_URL;
+import urlJoin from "url-join";
 
+const BASE = window.env.MANUAL_URL;
 export const manual = {
-  dedicated_machines: `${BASE}/documentation/dashboard/deploy/node_finder.html#dedicated-nodes`,
-  tft_bridges: `${BASE}/documentation/threefold_token/tft_bridges/tft_bridges.html`,
-  buy_sell_tft: `${BASE}/documentation/threefold_token/buy_sell_tft/buy_sell_tft.html`,
-  farmers: `${BASE}/documentation/farmers/farmers.html`,
-  governance: `${BASE}/documentation/dashboard/tfchain/tf_dao.html`,
-  pricing: `${BASE}/knowledge_base/cloud/pricing/pricing.html`,
-  dao: `${BASE}/documentation/dashboard/tfchain/tf_dao.html`,
-  caprover: `${BASE}/documentation/dashboard/solutions/caprover.html`,
-  tf_connect_app: `${BASE}/documentation/threefold_token/storing_tft/tf_connect_app.html`,
-  contract_locking: `${BASE}/documentation/developers/tfchain/tfchain.html#contract-locking`,
-  billing_pricing: `${BASE}/documentation/dashboard/deploy/node_finder.html#billing--pricing`,
-  discount_levels: `${BASE}/knowledge_base/cloud/pricing/pricing.html#staking-discount`,
-  tfchain_stellar_bridge: `${BASE}/documentation/threefold_token/tft_bridges/tfchain_stellar_bridge.html`,
-  minting_receipts: `${BASE}/documentation/farmers/3node_building/minting_receipts.html`,
+  dedicated_machines: urlJoin(BASE, "/documentation/dashboard/deploy/node_finder.html#dedicated-nodes"),
+  tft_bridges: urlJoin(BASE, "/documentation/threefold_token/tft_bridges/tft_bridges.html"),
+  buy_sell_tft: urlJoin(BASE, "/documentation/threefold_token/buy_sell_tft/buy_sell_tft.html"),
+  farmers: urlJoin(BASE, "/documentation/farmers/farmers.html"),
+  governance: urlJoin(BASE, "/documentation/dashboard/tfchain/tf_dao.html"),
+  pricing: urlJoin(BASE, "/knowledge_base/cloud/pricing/pricing.html"),
+  dao: urlJoin(BASE, "/documentation/dashboard/tfchain/tf_dao.html"),
+  caprover: urlJoin(BASE, "/documentation/dashboard/solutions/caprover.html"),
+  tf_connect_app: urlJoin(BASE, "/documentation/threefold_token/storing_tft/tf_connect_app.html"),
+  tf_connect_wallet: urlJoin(BASE, "/documentation/dashboard/wallet_connector.html"),
+  contract_locking: urlJoin(BASE, "/documentation/developers/tfchain/tfchain.html#contract-locking"),
+  billing_pricing: urlJoin(BASE, "/documentation/dashboard/deploy/node_finder.html#billing--pricing"),
+  discount_levels: urlJoin(BASE, "/knowledge_base/cloud/pricing/pricing.html#staking-discount"),
+  tfchain_stellar_bridge: urlJoin(BASE, "/documentation/threefold_token/tft_bridges/tfchain_stellar_bridge.html"),
+  minting_receipts: urlJoin(BASE, "/documentation/farmers/3node_building/minting_receipts.html"),
 };
diff --git a/packages/playground/src/weblets/profile_manager.vue b/packages/playground/src/weblets/profile_manager.vue
index cef65de4da..8a7590b88e 100644
--- a/packages/playground/src/weblets/profile_manager.vue
+++ b/packages/playground/src/weblets/profile_manager.vue
@@ -72,7 +72,7 @@
       <v-alert variant="tonal" class="mb-6">
         <p :style="{ maxWidth: '880px' }">
           Please visit
-          <a class="app-link" :href="manual.tf_connect_app" target="_blank"> the manual </a>
+          <a class="app-link" :href="manual.tf_connect_wallet" target="_blank"> the manual </a>
           get started.
         </p>
       </v-alert>