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High CPU load on APs, then they shut down

High CPU load on APs, then they shut down

High CPU load on APs, then they shut down
High CPU load on APs, then they shut down
2025-03-26 14:06:16
Tags: #VLAN & Multi-Networks #Roaming #PPSK #High CPU load
Model: EAP610  
Hardware Version: V3
Firmware Version: 1.5.0 Build 20240830 Rel. 63168

Dear Support,
 

We built an OMADA-based network in mid-2024.


Switches:
- 3pcs SG3428X v1.30,
- 3pcs SG2210MP v4.20
APs:
- 3pcs EAP610(EU) v3.0


It happens irregularly with APs that they suddenly show high CPU load, but not at the same time. Then they either stop or restart. If they restart, clients cannot connect to them. Cask the "Reboot" button helps. Sometimes it doesn't either. In such cases, restarting the AP PORT on the POE SWITCH is the solution.
There are ~140 devices in the network, ~40 of which are connected via WiFi during working hours. Mobile devices frequently roam between the 3 APs.
The devices receive IPv4 addresses via DHCP, but the addresses of stationary devices are fixed in the Router. Users are using one SSID and 3 separate PPSKs.



Users are getting impatient with the frequent outages.
What am I missing?
How can I stabilize my APs?
 

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#1
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5 Reply
Re:High CPU load on APs, then they shut down
2025-03-27 03:45:00

Hi  @TJoe 

 

To better understand the issue, please let us know the following info:

1. Then they either stop or restart

>>>What's this mean? What's the performance of "stop", will the SSID stop broadcasting?  How do you know they restart? Did you check the LED status?

 

2. How often will the issue happen?

3. When the issue happened, will all wireless clients be affected at the same time?

4. Did this issue happening on all the EAP units?

 

 

The following are some troubleshooting steps you can try:

1. How to optimize wireless performance of EAP products

2. Change the ethernet cables that are connecting to the EAP units.

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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#2
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Re:High CPU load on APs, then they shut down
2025-03-27 20:52:04

  @Vincent-TP 
 

Hi,
Thanks for responding to my problem.
Here are the answers to your questions:

 

1. "Then they either stop or restart"
=> When the CPU load increases, the AP becomes inaccessible to users. Then in some cases the router restarts itself or simply stops (the SSID disappears) and is in the "DISCONNECTED" status in the monitoring system.
At this time, the AP can only be turned on again by restarting the corresponding port of the POE Router. I can't check the LED at this time because I'm not on site.
The system automatically restarts the APs every dawn.

 

2. How often will the issue happen?
=> random, you can't find a system in it. Sometimes several times a week, sometimes there is no error for weeks.

 

3. When the issue happened, will all wireless clients be affected at the same time?
=> No. The errors were independent of each other.

 

4. Did this issue happening on all the EAP units?
=> Yes, all three APs had this error.

 

The optimization steps were not effective. I have already done these before.
I have already checked the cables, they are fine.

 

I would like to read more suggestions! :-)

TJoe

 

 

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#3
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Re:High CPU load on APs, then they shut down
2025-03-28 02:39:36

  @TJoe 

Thank you so much for taking the time to post the issue on TP-Link community!
To better assist you, I've created a support ticket via your registered email address, and escalated it to our support engineer to look into the issue. The ticket ID is TKID250363693, please check your email box and ensure the support email is well received. Thanks!
Once the issue is addressed or resolved, welcome to update this topic thread with your solution to help others who may encounter the same issue as you did.
Many thanks for your great cooperation and patience!

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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#4
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Re:High CPU load on APs, then they shut down
3 weeks ago

  @Vincent-TP 

 

I have been experiencing the same thing now for a few months.

 

My network consists of 4 eap615-wall APs and they experience the same high CPU spike.

 

Would you be able to escalate as well?

 

 

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#5
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Re:High CPU load on APs, then they shut down
2 weeks ago

Hi  @homerfan 

 

Sure. Before that, please kindly give us the answer to the following questions. 

And I also recommend you starting a new Thread to discuss your case. Thanks.

 

To better understand the issue, please let us know the following info:

1. Then they either stop or restart

>>>What's this mean? What's the performance of "stop", will the SSID stop broadcasting?  How do you know they restart? Did you check the LED status?

 

2. How often will the issue happen?

3. When the issue happened, will all wireless clients be affected at the same time?

4. Did this issue happening on all the EAP units?

 

 

The following are some troubleshooting steps you can try:

1. How to optimize wireless performance of EAP products

2. Change the ethernet cables that are connecting to the EAP units.

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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#6
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Views: 171

Replies: 5

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VLAN & Multi-Networks Roaming PPSK
High CPU load
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