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Client Event logs

Client Event logs

Client Event logs
Client Event logs
2025-07-14 09:46:56 - last edited 2025-07-21 09:39:04
Tags: #Controller #Logs
Model: OC200  
Hardware Version: V1
Firmware Version: 1.35.7 Build 20250514 Rel.51837

One of our sites is showing a lot of client online / offline events in the log. I decided to track this and used terminal to ping one of the clients. Over the course of 1500 responses, the controller showed the client as having gone offline / online a couple of times, each for around two minutes, yet the ping responses were not intruruppted during this. So I'm curious to know how accurate the logs are. If a ping test shows a client as responsive, why would Omada log the client as having gone offline?

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Re:Client Event logs-Solution
2025-07-16 01:53:29 - last edited 2025-07-21 09:39:04

Hi  @ASK1974 

Thanks for the reply.

Based on the mentioned symptoms:

  • Mass simultaneous client disconnections
  • Unaffected network operations
  • Controller showing offline status

The most probable diagnosis is that the controller (OC200) has lost network connectivity. The root cause is highly likely to be a loose Ethernet cable connection to the OC200.

Recommended actions:

  1. Physically inspect and reseat the OC200's network cable connection
  2. If issue persists, replace with a known-good Ethernet cable
  3. Monitor if the problem recurs after cable replacement

 

Regarding the EAP fixed IP not working situation, please share a screenshot of the IP settings, DHCP server settings.

 

What's the firmware version of the OC200 you are using? 

Wish you a happy life and smooth network usage!  >Get the Latest Omada SDN Controller Releases Here< >Experience the Latest Omada EAP Firmware<
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Re:Client Event logs
2025-07-15 06:28:57

Hi  @ASK1974 

 

Thanks for posting here.

The 'offline/online' in the logs refers to the disconnection between the client and its connected equipment (EAP/Switch or router). The ping test from the terminal checks the connection between your selected device (EAP/Switch or router) and the pinged IP address. In theory, these results should be consistent with one another.

 

To better understand the situation, please let us know the following information:

1. Is the IP address used in your ping test the same as the one that generated the disconnection logs?

2. Is it a wired client or a wireless client?

3. Could you let me know if you configured portal authentication for the clients?

4. What kind of clients are generating the logs?

5. Did the Internet drop when the logs were generated?

6. A screenshot of the Device page so we can know the SDN devices you are using;

7. What kind of controller are you using, and what's the firmware version?

Wish you a happy life and smooth network usage!  >Get the Latest Omada SDN Controller Releases Here< >Experience the Latest Omada EAP Firmware<
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Re:Client Event logs
2025-07-15 08:19:58 - last edited 2025-07-15 08:23:09

  @Vincent-TP 

 

Thanks for responding.

 

Interestingly, I just logged in via VPN and, since posting yesterday, there are over 950 event logs just for disconnects / reconnects. Checking these, most of the devices are connected to an SG1024 unmanaged switch, and most disconnects are reported at exactly, or around the same time - so it could be the cable to the SG2428 core switch?

 

I've attached a screenshot of the current log (it's currently 9.15am). The OC200 is connected to the SG2428 and is currently reported as offline, yet I'm connected to it via VPN? I've also just remoted into the Control4 smart home system, and the Core 5, Dimmer 1, Dimmer 3, and BEG are all online.

 

Whilst we're at it. You can see the SDN devices below.The EAP610 is disconnected (hense offline). The Guest Bed and Kitchen EAPs both have fixed IPs reserved but are always taking an address from within the DHCP pool (100-250). Any ideas why they won't take the address I have reserved for them? I've rebooted both EAPs and the switch but...?

 

Here are my responses to your questions:

 

1. Is the IP address used in your ping test the same as the one that generated the disconnection logs? Yes

2. Is it a wired client or a wireless client? Wired

3. Could you let me know if you configured portal authentication for the clients? No

4. What kind of clients are generating the logs? Mostly smart home kit, Sonos, Heatmiser, Control4 lighting dimmers etc.

5. Did the Internet drop when the logs were generated? Not that I'm aware of.

6. A screenshot of the Device page so we can know the SDN devices you are using; see below

7. What kind of controller are you using, and what's the firmware version? OC200

 

 

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#3
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Re:Client Event logs-Solution
2025-07-16 01:53:29 - last edited 2025-07-21 09:39:04

Hi  @ASK1974 

Thanks for the reply.

Based on the mentioned symptoms:

  • Mass simultaneous client disconnections
  • Unaffected network operations
  • Controller showing offline status

The most probable diagnosis is that the controller (OC200) has lost network connectivity. The root cause is highly likely to be a loose Ethernet cable connection to the OC200.

Recommended actions:

  1. Physically inspect and reseat the OC200's network cable connection
  2. If issue persists, replace with a known-good Ethernet cable
  3. Monitor if the problem recurs after cable replacement

 

Regarding the EAP fixed IP not working situation, please share a screenshot of the IP settings, DHCP server settings.

 

What's the firmware version of the OC200 you are using? 

Wish you a happy life and smooth network usage!  >Get the Latest Omada SDN Controller Releases Here< >Experience the Latest Omada EAP Firmware<
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