diff --git a/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java b/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
index 32db6f0aa21..85c5bc1a9f6 100755
--- a/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
+++ b/server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
@@ -3433,9 +3433,9 @@ public class VirtualNetworkApplianceManagerImpl extends ManagerBase implements V
     }
 
     protected boolean sendCommandsToRouter(final VirtualRouter router, Commands cmds) throws AgentUnavailableException {
-        /*if(!checkRouterVersion(router)){
+        if(!checkRouterVersion(router)){
             throw new CloudRuntimeException("Router requires upgrade. Unable to send command to router:" + router.getId());
-        } */
+        }
         Answer[] answers = null;
         try {
             answers = _agentMgr.send(router.getHostId(), cmds);