Cee3PeeOh
Junior Member
Why do devices fall offline for no apparent reason?
As I stated in a different thread, I have encountered network video recorders, digital video recorders, and network cameras just dropping offline for no apparent reason that I can see. I mean they are up and running and happy and streaming then you come back from coffee and a chicken sandwich and several cameras are down or the entire NVR/DVR is down and won't even ping.
The devices are all static IP's usually on their own little network, then gone. I've checked with Angry IP for any IP address conflicts, port conflicts, power glitches, bad NIC's, etc. I'm stumped. it does not matter if the equipment is on a home network or an enterprise system over several countries. It does not matter the manufacturer both US and third world stuff act the same.
I did find this:
"There are many possible reasons so I’ll focus a common one: confused network auto-speed detection. Most contemporary network cards, hubs, and routers attempt to automatically determine the speed of each network connection. Sometimes they get it wrong.
Most home and office networks run at either 10 or 100 megabits per second (mbs). Just how the network devices tell the difference varies from one device to the next. Most will also monitor the speed continuously just in case it changes. That means that if the device is going to make a mistake it could happen at any time. And that can look like anything from really poor network performance to a previously working network connection suddenly dropping.
The most common auto-detect confusion happens when the devices at both ends of a network connection are trying to auto-detect at the same time. The detection mechanisms can actually conflict with each other and cause one side to get it wrong. It’s not as common but the detection algorithm can also be affected by the actual data going across the wire, or electrical noise."
https://askleo.com/why_does_my_network_connection_drop_every_so_often/
The problems here are it goes on to explain how to configure your settings to essentially set it to manual but there again he's going through a specific setup on Windows XP. A very timely article. Now what to do about the devices that probably cannot be configured that way.
Suggestions???
As I stated in a different thread, I have encountered network video recorders, digital video recorders, and network cameras just dropping offline for no apparent reason that I can see. I mean they are up and running and happy and streaming then you come back from coffee and a chicken sandwich and several cameras are down or the entire NVR/DVR is down and won't even ping.
The devices are all static IP's usually on their own little network, then gone. I've checked with Angry IP for any IP address conflicts, port conflicts, power glitches, bad NIC's, etc. I'm stumped. it does not matter if the equipment is on a home network or an enterprise system over several countries. It does not matter the manufacturer both US and third world stuff act the same.
I did find this:
"There are many possible reasons so I’ll focus a common one: confused network auto-speed detection. Most contemporary network cards, hubs, and routers attempt to automatically determine the speed of each network connection. Sometimes they get it wrong.
Most home and office networks run at either 10 or 100 megabits per second (mbs). Just how the network devices tell the difference varies from one device to the next. Most will also monitor the speed continuously just in case it changes. That means that if the device is going to make a mistake it could happen at any time. And that can look like anything from really poor network performance to a previously working network connection suddenly dropping.
The most common auto-detect confusion happens when the devices at both ends of a network connection are trying to auto-detect at the same time. The detection mechanisms can actually conflict with each other and cause one side to get it wrong. It’s not as common but the detection algorithm can also be affected by the actual data going across the wire, or electrical noise."
https://askleo.com/why_does_my_network_connection_drop_every_so_often/
The problems here are it goes on to explain how to configure your settings to essentially set it to manual but there again he's going through a specific setup on Windows XP. A very timely article. Now what to do about the devices that probably cannot be configured that way.
Suggestions???
