diff --git a/src/renderer/api/musicParser.ts b/src/renderer/api/musicParser.ts
index 7d1ad7c..d9fedc1 100644
--- a/src/renderer/api/musicParser.ts
+++ b/src/renderer/api/musicParser.ts
@@ -160,21 +160,11 @@ export class CacheManager {
       // 清除URL缓存
       await deleteData('music_url_cache', id);
       console.log(`清除歌曲 ${id} 的URL缓存`);
-
-      // 清除失败缓存 - 需要遍历所有策略
-      const strategies = ['custom', 'gdmusic', 'unblockMusic'];
-      for (const strategy of strategies) {
-        const cacheKey = `${id}_${strategy}`;
-        try {
-          await deleteData('music_failed_cache', cacheKey);
-        } catch {
-          // 忽略删除不存在缓存的错误
-        }
-      }
-      console.log(`清除歌曲 ${id} 的失败缓存`);
     } catch (error) {
-      console.error('清除缓存失败:', error);
+      console.error('清除URL缓存失败:', error);
     }
+    // 清除内存失败缓存（覆盖所有策略，含 lxMusic）
+    CacheManager.clearFailedCache(id);
   }
 }
 
@@ -237,7 +227,19 @@ const getGDMusicAudio = async (id: number, data: SongResult): Promise<ParsedMusi
 const getUnblockMusicAudio = (id: number, data: SongResult, sources: any[]) => {
   const filteredSources = sources.filter((source) => source !== 'gdmusic');
   console.log(`使用unblockMusic解析，音源:`, filteredSources);
-  return window.api.unblockMusic(id, cloneDeep(data), cloneDeep(filteredSources));
+  // 整体超时兜底：unblock 全链路（IPC → match()）本身无超时，底层请求挂起时会
+  // 导致渲染进程无限等待、起播/切歌长时间无响应。超时解析为 null 以走降级，
+  // 且不抛异常（避免触发 RetryHelper 的多次重试放大等待时间）。
+  const UNBLOCK_TIMEOUT = 15000;
+  return Promise.race([
+    window.api.unblockMusic(id, cloneDeep(data), cloneDeep(filteredSources)),
+    new Promise((resolve) => {
+      setTimeout(() => {
+        console.warn(`unblockMusic 解析超时(${UNBLOCK_TIMEOUT}ms)，放弃等待`);
+        resolve(null);
+      }, UNBLOCK_TIMEOUT);
+    })
+  ]);
 };
 
 /**
diff --git a/src/renderer/api/parseFromCustomApi.ts b/src/renderer/api/parseFromCustomApi.ts
index c61d45c..64b17fe 100644
--- a/src/renderer/api/parseFromCustomApi.ts
+++ b/src/renderer/api/parseFromCustomApi.ts
@@ -72,7 +72,9 @@ export const parseFromCustomApi = async (
       response = await axios.post(plugin.apiUrl, finalParams, { timeout });
     } else {
       // 默认为 GET
-      const finalUrl = `${plugin.apiUrl}?${new URLSearchParams(finalParams).toString()}`;
+      // apiUrl 本身可能已带查询串（如 xxx/api.php?type=url），需按情况选择 ? 或 &
+      const separator = plugin.apiUrl.includes('?') ? '&' : '?';
+      const finalUrl = `${plugin.apiUrl}${separator}${new URLSearchParams(finalParams).toString()}`;
       console.log('自定义API：发送 GET 请求到:', finalUrl);
       response = await axios.get(finalUrl, { timeout });
     }
@@ -83,11 +85,20 @@ export const parseFromCustomApi = async (
     if (musicUrl && typeof musicUrl === 'string') {
       console.log('自定义API：成功获取URL！');
       // 5. 组装成应用所需的标准格式并返回
+      // quality 是 'standard'/'higher'/'exhigh'/'lossless'/'hires' 等字符串，
+      // 直接 parseInt 会得到 NaN，这里映射为对应码率(bps)
+      const QUALITY_BITRATE: Record<string, number> = {
+        standard: 128000,
+        higher: 192000,
+        exhigh: 320000,
+        lossless: 999000,
+        hires: 1900000
+      };
       return {
         data: {
           data: {
             url: musicUrl,
-            br: parseInt(quality) * 1000,
+            br: QUALITY_BITRATE[quality] ?? 320000,
             size: 0,
             md5: '',
             platform: plugin.name.toLowerCase().replace(/\s/g, ''),
diff --git a/src/renderer/utils/request.ts b/src/renderer/utils/request.ts
index bc7eb8e..3cc68bb 100644
--- a/src/renderer/utils/request.ts
+++ b/src/renderer/utils/request.ts
@@ -89,13 +89,13 @@ request.interceptors.response.use(
       return Promise.reject(error);
     }
 
-    // 处理 301 状态码
-    if (error.response?.status === 301 && config.params.noLogin !== true) {
+    // 处理 301 状态码：登录态失效，重试同一请求无意义，清除登录信息后直接拒绝
+    if (error.response?.status === 301 && config.params?.noLogin !== true) {
       // 使用 store mutation 清除用户信息
       const userStore = useUserStore();
       userStore.handleLogout();
-      console.log(`301 状态码，清除登录信息后重试第 ${config.retryCount} 次`);
-      config.retryCount = 3;
+      console.log('301 状态码：登录态已失效，已清除登录信息，不再重试');
+      return Promise.reject(error);
     }
 
     // 检查是否还可以重试