diff --git a/client/macos/PacketTunnel/PacketTunnelProvider.swift b/client/macos/PacketTunnel/PacketTunnelProvider.swift
index 682cf73..f32fe49 100644
--- a/client/macos/PacketTunnel/PacketTunnelProvider.swift
+++ b/client/macos/PacketTunnel/PacketTunnelProvider.swift
@@ -448,12 +448,13 @@ final class StatsCollector: NSObject {
 
     private func pollClash() {
         if groupNames.isEmpty {
-            clashGet("/proxies", query: nil) { [weak self] obj in
+            clashGet("/proxies", query: nil) { [weak self] obj, raw in
                 guard let self else { return }
                 let names = StatsCollector.extractUrltestGroups(obj)
                 self.queue.async {
                     self.groupNames = names
-                    self.setDiag("groups=\(names)")
+                    if names.isEmpty { self.setDiag("groups=[] raw=\(raw.prefix(120))") }
+                    else { self.setDiag("groups=\(names)") }
                     self.triggerGroupDelays()
                 }
             }
@@ -465,19 +466,27 @@ final class StatsCollector: NSObject {
     private func triggerGroupDelays() {
         for name in groupNames {
             clashGet("/group/\(name)/delay",
-                     query: ["url": "http://www.gstatic.com/generate_204", "timeout": "3000"]) { [weak self] obj in
-                guard let self, let dict = obj as? [String: Any] else { return }
+                     query: ["url": "http://www.gstatic.com/generate_204", "timeout": "3000"]) { [weak self] obj, raw in
+                guard let self else { return }
                 var urltest: [(tag: String, delayMs: Int)] = []
-                for (tag, v) in dict {
-                    if let d = (v as? NSNumber)?.intValue { urltest.append((tag: tag, delayMs: d)) }
+                if let dict = obj as? [String: Any] {
+                    for (tag, v) in dict {
+                        if let d = (v as? NSNumber)?.intValue {
+                            urltest.append((tag: tag, delayMs: d))                    // 扁平 {tag:ms}
+                        } else if let inner = v as? [String: Any],
+                                  let d = (inner["delay"] as? NSNumber)?.intValue {
+                            urltest.append((tag: tag, delayMs: d))                    // 嵌套 {tag:{delay:ms}}
+                        }
+                    }
                 }
-                let summary = urltest.map { "\($0.tag):\($0.delayMs)" }.joined(separator: ",")
-                NSLog("[pangolin/collector] kernel delay(%@)=%@", name, summary) // 内核侧实测打点
+                NSLog("[pangolin/collector] kernel delay(%@) n=%d raw=%@", name, urltest.count, raw)
                 self.queue.async {
                     self.lock.lock()
-                    self.latestUrltest = urltest
-                    self.latest["urltestResults"] = urltest.map { ["tag": $0.tag, "delayMs": $0.delayMs] }
-                    self.latest["diag"] = "delay(\(name))=\(summary)"
+                    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=\(raw.prefix(120))"
                     self.lock.unlock()
                 }
             }
@@ -489,19 +498,21 @@ final class StatsCollector: NSObject {
     }
 
     private func clashGet(_ path: String, query: [String: String]?,
-                          completion: @escaping (Any?) -> Void) {
-        guard var comps = URLComponents(string: clashBase + path) else { completion(nil); return }
+                          completion: @escaping (Any?, String) -> Void) {
+        guard var comps = URLComponents(string: clashBase + path) else { completion(nil, "badurl"); return }
         if let query { comps.queryItems = query.map { URLQueryItem(name: $0.key, value: $0.value) } }
-        guard let url = comps.url else { completion(nil); return }
+        guard let url = comps.url else { completion(nil, "badurl"); return }
         var req = URLRequest(url: url)
         req.timeoutInterval = 8
         if !clashSecret.isEmpty {
             req.setValue("Bearer \(clashSecret)", forHTTPHeaderField: "Authorization")
         }
-        URLSession.shared.dataTask(with: req) { data, _, err in
-            if let err { NSLog("[pangolin/collector] clash %@ err=%@", path, err.localizedDescription) }
-            guard let data else { completion(nil); return }
-            completion(try? JSONSerialization.jsonObject(with: data))
+        URLSession.shared.dataTask(with: req) { data, resp, err in
+            if let err { completion(nil, "err:\(err.localizedDescription)"); return }
+            let code = (resp as? HTTPURLResponse)?.statusCode ?? -1
+            guard let data else { completion(nil, "http\(code):nodata"); return }
+            let raw = String(data: data, encoding: .utf8) ?? "<\(data.count)B>"
+            completion(try? JSONSerialization.jsonObject(with: data), "http\(code):\(raw)")
         }.resume()
     }
 
diff --git a/client/macos/Runner.xcodeproj/project.pbxproj b/client/macos/Runner.xcodeproj/project.pbxproj
index a3e2a2e..1315f69 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 = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 47;
+				CURRENT_PROJECT_VERSION = 48;
 				GENERATE_INFOPLIST_FILE = YES;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.pangolin.pangolin.RunnerTests;
@@ -674,7 +674,7 @@
 			baseConfigurationReference = F8904897A48DC81799B8752E /* Pods-RunnerTests.release.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
-				CURRENT_PROJECT_VERSION = 47;
+				CURRENT_PROJECT_VERSION = 48;
 				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 = 47;
+				CURRENT_PROJECT_VERSION = 48;
 				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 = 47;
+				CURRENT_PROJECT_VERSION = 48;
 				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 = 47;
+				CURRENT_PROJECT_VERSION = 48;
 				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 = 47;
+				CURRENT_PROJECT_VERSION = 48;
 				DEVELOPMENT_TEAM = BYL4KQHMTN;
 				ENABLE_APP_SANDBOX = YES;
 				ENABLE_HARDENED_RUNTIME = YES;