Hello, I entered my controller IP address as 192.168.1.100 (Local) for 1769-L33ER. It worked fine until couple month and found the controller kept disconnecting. Changed to different IP and later found this in RSLinx Classic tree: 192.168.1.101 [0.0.0.0], 1769-L33ER LOGIX5333ER. What does [0.0.0.0] mean in this situation? Thank you