From 649ff52970c7a077cfe9a0aa404dca4e3d22534a Mon Sep 17 00:00:00 2001
From: rustdesk <info@rustdesk.com>
Date: Fri, 24 Jun 2022 02:47:46 +0800
Subject: [PATCH] https://github.com/rustdesk/rustdesk/issues/751

---
 src/rendezvous_mediator.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rendezvous_mediator.rs b/src/rendezvous_mediator.rs
index b332c69c9..a7f90b977 100644
--- a/src/rendezvous_mediator.rs
+++ b/src/rendezvous_mediator.rs
@@ -231,7 +231,7 @@ impl RendezvousMediator {
                     }
                     last_timer = now;
                     let elapsed_resp = last_register_resp.map(|x| x.elapsed().as_millis() as i64).unwrap_or(REG_INTERVAL);
-                    let timeout = (last_register_sent.map(|x| x.elapsed().as_millis() as i64).unwrap_or(REG_INTERVAL) - elapsed_resp) > REG_TIMEOUT;
+                    let timeout = (elapsed_resp - last_register_sent.map(|x| x.elapsed().as_millis() as i64).unwrap_or(REG_INTERVAL)) > REG_TIMEOUT;
                     if timeout || elapsed_resp >= REG_INTERVAL {
                         allow_err!(rz.register_peer(&mut socket).await);
                         last_register_sent = now;