diff --git a/src/core/packet/highway/highwayContext.ts b/src/core/packet/highway/highwayContext.ts
index f02e375c..96da373e 100644
--- a/src/core/packet/highway/highwayContext.ts
+++ b/src/core/packet/highway/highwayContext.ts
@@ -78,8 +78,12 @@ export class PacketHighwayContext {
                     ip: int32ip2str(addr.ip),
                     port: addr.port
                 });
+                this.hwClient.changeServer(int32ip2str(addr.ip), addr.port);
             }
         }
+        if (this.sig.serverAddr.length === 0) {
+            this.logger.warn('[Highway PrepareUpload] server addr is empty!');
+        }
     }
 
     async uploadImage(peer: Peer, img: PacketMsgPicElement): Promise<void> {