diff --git a/gbn/timeout_manager.go b/gbn/timeout_manager.go
index e518ab8..89522cb 100644
--- a/gbn/timeout_manager.go
+++ b/gbn/timeout_manager.go
@@ -7,9 +7,9 @@ import (
 )
 
 const (
-	defaultHandshakeTimeout = 100 * time.Millisecond
-	defaultResendTimeout    = 100 * time.Millisecond
-	minimumResendTimeout    = 100 * time.Millisecond
+	defaultHandshakeTimeout = 1000 * time.Millisecond
+	defaultResendTimeout    = 1000 * time.Millisecond
+	minimumResendTimeout    = 1000 * time.Millisecond
 	defaultFinSendTimeout   = 1000 * time.Millisecond
 	defaultResendMultiplier = 5
 	DefaultSendTimeout      = math.MaxInt64