diff --git a/homeassistant/components/fritz/coordinator.py b/homeassistant/components/fritz/coordinator.py
index 4134f0af026..31d8ff81491 100644
--- a/homeassistant/components/fritz/coordinator.py
+++ b/homeassistant/components/fritz/coordinator.py
@@ -606,6 +606,9 @@ class FritzBoxTools(DataUpdateCoordinator[UpdateCoordinatorDataType]):
                 dev_info: Device = hosts[dev_mac]
 
                 for link in interf["node_links"]:
+                    if link.get("state") != "CONNECTED":
+                        continue  # ignore orphan node links
+
                     intf = mesh_intf.get(link["node_interface_1_uid"])
                     if intf is not None:
                         if intf["op_mode"] == "AP_GUEST":
diff --git a/tests/components/fritz/const.py b/tests/components/fritz/const.py
index 0817cc5d804..acd96879b1e 100644
--- a/tests/components/fritz/const.py
+++ b/tests/components/fritz/const.py
@@ -655,7 +655,23 @@ MOCK_MESH_DATA = {
                             "cur_data_rate_tx": 0,
                             "cur_availability_rx": 99,
                             "cur_availability_tx": 99,
-                        }
+                        },
+                        {
+                            "uid": "nl-79",
+                            "type": "LAN",
+                            "state": "DISCONNECTED",
+                            "last_connected": 1642872667,
+                            "node_1_uid": "n-167",
+                            "node_2_uid": "n-76",
+                            "node_interface_1_uid": "ni-140",
+                            "node_interface_2_uid": "ni-77",
+                            "max_data_rate_rx": 1000000,
+                            "max_data_rate_tx": 1000000,
+                            "cur_data_rate_rx": 0,
+                            "cur_data_rate_tx": 0,
+                            "cur_availability_rx": 99,
+                            "cur_availability_tx": 99,
+                        },
                     ],
                 }
             ],