Issue Summary:
Wisenet WAVE analyzes RTP packets received at each server. If Wisenet WAVE determines packets were lost and/or did not arrive as smoothly (in the correct order) as expected, users will see a Network Issue notification. This article provides information on the Network Issue warning in WAVE.
NOTE: The Network Issue notification appears in the Notifications Panel each
time an issue is detected. The Wisenet WAVE log file also shows a new entry
indicating packet loss.
Resolution:
Any one or any combination of the following conditions may result in a network issue:
-
Network bandwidth is not adequate.
The bandwidth between the camera and the server is not sufficient and is causing RTP packet loss. There are many reasons why this may be the case. The most common include poor connectivity (slow networks) or capacity issues (too much data for existing network infrastructure).
- Camera/stream is not being received as expected.
Unstable/under-performing cameras may result in dropped frames or lost packets. Also, the affected camera might concurrently be connected to a 3rd party system or interface which is competing for the camera’s streams.
- Networking devices are not configured properly or are incapable of handling the necessary traffic types.
When using UDP as the connection protocol between cameras and servers, some PoE switches do not handle this protocol well. There are some inherent limitations of networking devices which may prevent adequate handling of traffic or throughput.
- Network cabling.
Packet loss can be caused by cabling runs that are too long, use the wrong type or quality of cabling, poor condition of cabling, or too many intermediate switches or connections.
Addressing a Network Issue
- Check your network bandwidth.
Drag and drop the server experiencing the issue onto the Viewing Grid in the Desktop client and monitor the network traffic to look for any obvious issues. - Try to isolate the problem camera/stream.
Remove devices one by one and check to see if the issue is reproduced.
Reboot the affected camera.
Remove and add the streams(s) again to see if the issue is resolved (use if you are seeing this issue with an RTSP/HTTP stream). - Try VLC.
Open the camera streams in VLC (with logging) and check to see if the packets are lost there. The streams URL can be retrieved through Camera Settings form on the Advanced tab (Primary Stream, Secondary Stream).
Preventing a Network Issue
To prevent a network issue:
- Make sure your network is stable and that throughput is adequate between the affected camera and server.
- Choose stable, dependable cameras/streams.
- Simplify the network architecture as much as possible so that the path between the camera/stream and server is as direct as possible. The more routing you have the more likely a camera/stream is to be affected.
- Make sure to use high quality cabling/wireless access points.