From 4325b7f6f9d706f8893feb32efbc9c36a60876d1 Mon Sep 17 00:00:00 2001
From: Gang Zhuo <gang.zhuo@gmail.com>
Date: Wed, 2 Mar 2016 21:00:57 -0500
Subject: [PATCH] fix
 https://github.com/shadowsocks/shadowsocks-windows/issues/466

---
 .../Controller/Service/AvailabilityStatistics.cs           | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/shadowsocks-csharp/Controller/Service/AvailabilityStatistics.cs b/shadowsocks-csharp/Controller/Service/AvailabilityStatistics.cs
index 790f5d1b..af039b18 100644
--- a/shadowsocks-csharp/Controller/Service/AvailabilityStatistics.cs
+++ b/shadowsocks-csharp/Controller/Service/AvailabilityStatistics.cs
@@ -196,7 +196,12 @@ namespace Shadowsocks.Controller
                 _inboundSpeedRecords.TryGetValue(id, out inboundSpeedRecords);
                 _outboundSpeedRecords.TryGetValue(id, out outboundSpeedRecords);
                 _latencyRecords.TryGetValue(id, out latencyRecords);
-                records.Add(id, new StatisticsRecord(id, inboundSpeedRecords, outboundSpeedRecords, latencyRecords));
+                StatisticsRecord record = new StatisticsRecord(id, inboundSpeedRecords, outboundSpeedRecords, latencyRecords);
+                /* duplicate server identifier */
+                if (records.ContainsKey(id))
+                    records[id] = record;
+                else
+                    records.Add(id, record);
             }
 
             if (Config.Ping)