diff --git a/NucleicRemote/NucleicRemote/Models/HostConnection.swift b/NucleicRemote/NucleicRemote/Models/HostConnection.swift
index 0644e40..7d8ce76 100644
--- a/NucleicRemote/NucleicRemote/Models/HostConnection.swift
+++ b/NucleicRemote/NucleicRemote/Models/HostConnection.swift
@@ -706,7 +706,10 @@ final class HostConnection {
         }
         revalidateTask?.cancel()
         revalidateTask = Task { [weak self] in
-            let alive = await client.probeAlive(within: .milliseconds(800))
+            // A generous bound on a pong round-trip (LAN <10ms, relay <200ms) — only paid in full
+            // when the link is actually dead; a live one answers and exits in ~1 RTT. Kept well
+            // under the follow-on re-dial so the whole dead-link reconnect stays sub-second.
+            let alive = await client.probeAlive(within: .milliseconds(600))
             guard !Task.isCancelled, let self, self.client === client,
                   self.connectivity.isLive else { return }
             if !alive {