Deco M9 sees and doesn't see devices
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Hi all,
I am experiancing strange behaviour of my setup and since I lack a lot of knowladge about networking, I hope you can help me with the problem I am facing.
This is my setup:
- Deco M9 working in the router operating mode, set as a main one
- Two additional M9s connected via Ethernet backhaul
- TP-Link T1500G-10PS PoE switch connected to the main Deco
- 4 PoE cameras connected to the PoE switch
Deco M9 DHCP configuration:
- Start IP: 192.168.0.100
- End IP: 192.168.0.250
- Default gateway: 192.168.0.1
- Subnet mask: 255.255.255.0
TP-Link T1500G-10PS PoE switch system IP configuration:
- Static IP: 192.168.0.200
- Default gateway: 192.168.0.1
- Subnet mask: 255.255.255.0
Cameras system IP configuration:
- Static IP: from 192.168.0.201 to 192.168.0.204
- Default gateway: 192.168.0.1
- Subnet mask: 255.255.255.0
So the problem is that Deco sometimes sees the switch and the cameras and sometimes not - the devices constantly disappear and appear and I can only see them as offline ones. Sometimes what happens though is that cameras appear as new devices with that same MAC address, but different IP - e.g. one of the cameras which has a static IP of 192.168.0.201 appears with a new IP of 53.50.51.56.
This behaviour does not affect access to the devices, as I can still login to the them and everything works just fine. What is more, even if a camera appears with a new IP like 53.50.51.56 I can still login into it via 192.168.0.201.
Previously I was experiancing that same behaviour with my smart home control unit, even though it was connected directly to the main Deco via Ethernet backhaul (the control unit also has a static IP). I discovered that the problem was in address reservation funcionality - I reserved an adress for it and it was causing the issue, but once the address reservation removed, the problem disappeared. None of the cameras and the switch has address reservation.
So what is wrong here?
/Dawid
@Kevin_Z
Hi Kevin,
Following your suggestions, I changed static IP of the switch and cameras to dynamic ones. Unfortunately the devices still behave as before, disappearing and appearing spontaneously.
There is also a Synology NAS connected that same switch, and it had static IP assigned with an address reserved (for testing purposes I changed it to DHCP). I have never experienced such a behavior of the NAS like with cameras. The NAS is always on the list, even though it has a static IP.
My WAN IP is 37.xxx.xxx.xxx and it hasn’t changed for months, as I haven't restarted my ISP router for a really long time. Have a look at pictures below:
- The first one shows the system when it is discovering cameras as it should
- The second one shows properties of the front yard camera when it is visible by Deco as it should be
- The third one shows the system when it is not discovering cameras as it should
- The fourth one shows the front yard camera when it is not visible by Deco as it should be - it appears as a new device with that same MAC address, but different IP. The new IP can start with 54, or 51, or 47, or whatever. The name of the device is being also reset to default one.
In addition, once the "new camera" is visible by Deco, the normal one is not listed in offline devices and vice versa - once normal one is visible as it should, the "new camera" is not listed in offline devices.
I also listed devices with help of the arp -a command in CMD and it is fully reflecting Deco’s list. If cameras and switch are not correctly listed by Deco, they are also not listed in CMD. The strangest thing is, that it does not matter if the cameras or switch are properly visible or not, I can always access them via a web interface. My Synology which works as a NVR, also has no problem with that, as connection with cameras is never lost.
Any thoughts?
