diff --git a/NucleicRemote/NucleicRemote/Models/HostConnection.swift b/NucleicRemote/NucleicRemote/Models/HostConnection.swift
index 7d8ce76..85d84c1 100644
--- a/NucleicRemote/NucleicRemote/Models/HostConnection.swift
+++ b/NucleicRemote/NucleicRemote/Models/HostConnection.swift
@@ -117,6 +117,9 @@ final class HostConnection {
     private var retryTask: Task<Void, Never>?
     private var revalidateTask: Task<Void, Never>?
     private var lanConnectTimeout: Task<Void, Never>?
+    /// In-flight LAN-reachability probe (the tailnet/relay → LAN return leg). Nil unless a probe is
+    /// running; at most one at a time so repeated path-change events don't stack.
+    private var lanUpgradeProbe: Task<Void, Never>?
     private var reconnectAttempts = 0
     private var seenSeq: Set<UInt64> = []