diff --git a/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/Gb28181DownloadService.java b/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/Gb28181DownloadService.java
index 81a6471..99fd6d5 100644
--- a/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/Gb28181DownloadService.java
+++ b/gb28181-wvp-proxy-service/src/main/java/cn/skcks/docking/gb28181/wvp/service/gb28181/Gb28181DownloadService.java
@@ -104,6 +104,7 @@ public class Gb28181DownloadService {
 
     public void streamHeader(HttpServletResponse response) {
         response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
+
         response.setHeader("Accept-Ranges", "none");
         response.setHeader("Connection", "close");
     }
@@ -297,6 +298,7 @@ public class Gb28181DownloadService {
 
         String cacheKey = CacheUtil.getKey(docking.getGbDeviceId(), device.getGbDeviceChannelId());
         String existCallId = RedisUtil.StringOps.get(cacheKey);
+        RedisUtil.KeyOps.delete(cacheKey);
         String infoKey = CacheUtil.getKey(MediaSdpHelper.Action.PLAY.getAction(), existCallId);
         VideoInfo videoInfo = JsonUtils.parse(RedisUtil.StringOps.get(infoKey), VideoInfo.class);
         if(videoInfo != null){