diff --git a/client/macos/PacketTunnel/PacketTunnelProvider.swift b/client/macos/PacketTunnel/PacketTunnelProvider.swift
index 09dfca9..9c2fe77 100644
--- a/client/macos/PacketTunnel/PacketTunnelProvider.swift
+++ b/client/macos/PacketTunnel/PacketTunnelProvider.swift
@@ -445,24 +445,37 @@ final class StatsCollector: NSObject {
     }
 
     private func pollClash() {
-        // 主源:读 /proxies 里各 URLTest 成员的 history 缓存延迟(稳定,active 探测超时也不丢)。
-        // 同时对 URLTest 组主动跑一次 /group/<name>/delay 刷新 history(跳过 GLOBAL 选择器组)。
-        clashGet("/proxies", query: nil) { [weak self] obj, _ in
+        // 先取组名(URLTest 类,跳过 GLOBAL 选择器),再对每组主动跑 /group/<name>/delay 取
+        // 内核实测延迟。sing-box 的 /proxies 不带 history,故只能 active 取;成功就缓存,超时/空
+        // 不覆盖旧值 → 显示稳定(congested 链路上探测时好时坏也不丢延迟)。
+        clashGet("/proxies", query: nil) { [weak self] obj, raw in
             guard let self else { return }
-            let results = StatsCollector.extractUrltestResults(obj)
             let groups = StatsCollector.extractUrltestGroups(obj).filter { $0 != "GLOBAL" }
             self.queue.async {
-                if !results.isEmpty {
-                    self.lock.lock()
-                    self.latestUrltest = results
-                    self.latest["urltestResults"] = results.map { ["tag": $0.tag, "delayMs": $0.delayMs] }
-                    self.lock.unlock()
-                }
-                self.setDiag("hist=\(results.map { "\($0.tag):\($0.delayMs)" }.joined(separator: ","))")
+                if groups.isEmpty { self.setDiag("groups=[] raw=\(raw.prefix(100))") }
                 for name in groups {
                     self.clashGet("/group/\(name)/delay",
                                   query: ["url": "http://www.gstatic.com/generate_204",
-                                          "timeout": "5000"]) { _, _ in }
+                                          "timeout": "5000"]) { [weak self] dobj, draw in
+                        guard let self else { return }
+                        var urltest: [(tag: String, delayMs: Int)] = []
+                        if let dict = dobj as? [String: Any] {
+                            for (tag, v) in dict {
+                                if let d = (v as? NSNumber)?.intValue, d > 0 {
+                                    urltest.append((tag: tag, delayMs: d))
+                                }
+                            }
+                        }
+                        self.queue.async {
+                            self.lock.lock()
+                            if !urltest.isEmpty {
+                                self.latestUrltest = urltest
+                                self.latest["urltestResults"] = urltest.map { ["tag": $0.tag, "delayMs": $0.delayMs] }
+                            }
+                            self.latest["diag"] = "d(\(name)) n=\(urltest.count) raw=\(draw.prefix(80))"
+                            self.lock.unlock()
+                        }
+                    }
                 }
             }
         }
@@ -504,27 +517,6 @@ final class StatsCollector: NSObject {
         }
         return names
     }
-
-    /// 从 /proxies 提取各 URLTest 组成员的最新 history 延迟(与 Windows extractUrltestResults 同法)。
-    static func extractUrltestResults(_ obj: Any?) -> [(tag: String, delayMs: Int)] {
-        guard let root = obj as? [String: Any],
-              let proxies = root["proxies"] as? [String: Any] else { return [] }
-        var results: [(tag: String, delayMs: Int)] = []
-        for (_, v) in proxies {
-            guard let group = v as? [String: Any],
-                  let type = group["type"] as? String, type == "URLTest",
-                  let members = group["all"] as? [Any] else { continue }
-            for m in members {
-                guard let tag = m as? String,
-                      let member = proxies[tag] as? [String: Any],
-                      let history = member["history"] as? [Any],
-                      let last = history.last as? [String: Any],
-                      let delay = (last["delay"] as? NSNumber)?.intValue, delay > 0 else { continue }
-                results.append((tag: tag, delayMs: delay))
-            }
-        }
-        return results
-    }
 }
 
 extension StatsCollector: LibboxCommandClientHandlerProtocol {
diff --git a/client/macos/Runner.xcodeproj/project.pbxproj b/client/macos/Runner.xcodeproj/project.pbxproj
index b084235..fff4579 100644
--- a/client/macos/Runner.xcodeproj/project.pbxproj
+++ b/client/macos/Runner.xcodeproj/project.pbxproj
@@ -659,7 +659,7 @@
 			baseConfigurationReference = C57BBFD43F9175D1E23685EF /* Pods-RunnerTests.debug.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 49;
+				CURRENT_PROJECT_VERSION = 50;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.pangolin.pangolin.RunnerTests;
@@ -674,7 +674,7 @@
 			baseConfigurationReference = F8904897A48DC81799B8752E /* Pods-RunnerTests.release.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 49;
+				CURRENT_PROJECT_VERSION = 50;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.pangolin.pangolin.RunnerTests;
@@ -689,7 +689,7 @@
 			baseConfigurationReference = B21E68FC1F5D33DD67A0DF5E /* Pods-RunnerTests.profile.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 49;
+				CURRENT_PROJECT_VERSION = 50;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.pangolin.pangolin.RunnerTests;
@@ -960,7 +960,7 @@
 				CODE_SIGN_ENTITLEMENTS = PacketTunnel/PacketTunnel.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 49;
+				CURRENT_PROJECT_VERSION = 50;
 				DEVELOPMENT_TEAM = BYL4KQHMTN;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -1010,7 +1010,7 @@
 				CODE_SIGN_ENTITLEMENTS = PacketTunnel/PacketTunnel.entitlements;
 				CODE_SIGN_IDENTITY = "Developer ID Application";
 				CODE_SIGN_STYLE = Manual;
-				CURRENT_PROJECT_VERSION = 49;
+				CURRENT_PROJECT_VERSION = 50;
 				DEVELOPMENT_TEAM = BYL4KQHMTN;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -1059,7 +1059,7 @@
 				CODE_SIGN_ENTITLEMENTS = PacketTunnel/PacketTunnel.entitlements;
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 49;
+				CURRENT_PROJECT_VERSION = 50;
 				DEVELOPMENT_TEAM = BYL4KQHMTN;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;