diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/web/ApiController.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/web/ApiController.java
index fa5e92cc..46e879eb 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/web/ApiController.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/web/ApiController.java
@@ -39,7 +39,9 @@ public class ApiController {
         Map<String, Object> status = new HashMap<>();
         HttpResp resp = new HttpResp();
         DeviceChannel deviceChannel = OnlineChannels.INSTANCE.getConfigChannel(deviceId);
-        if(deviceChannel == null) deviceChannel = OnlineChannels.INSTANCE.getDataChannel(deviceId);
+        if(deviceChannel == null || !deviceChannel.isOnline()) {
+            deviceChannel = OnlineChannels.INSTANCE.getDataChannel(deviceId);
+        }
         //if(deviceChannel!=null && deviceChannel.isOnline()){
         if(deviceChannel!=null && deviceChannel.isOnline()){
             status.put("status", "Online");