EAP 225 AP connectivity isssues

EAP 225 AP connectivity isssues

EAP 225 AP connectivity isssues
EAP 225 AP connectivity isssues
3 weeks ago - last edited a week ago
Model: EAP225-Outdoor  
Hardware Version: V1
Firmware Version: 5.1.11

I have been experiencing some strange behavior with two of the AP's in this network. When I look at the uptime, the AP has been online for 21 days. However, each day the logfile tells me that the Ap is being connected about every 15 or 20 minutes. To me this might indicate some kind of interference.

Everything has been fine for several years. This behavior started about 2 weeks ago. I have tried rebooting it but ho joy.

I at first though replacing the unit migit solve the problem, but since it's been online all the time, I am not sure that is the best thing to do.

It never says it's been disconnected. It just tells me it's connected about 3 to 4 times an hour!

Any ideas?

 

Art

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Re:EAP 225 AP connectivity isssues-Solution
2 weeks ago - last edited a week ago

  @Byteguy A couple days ago, the strange performance issues disappeared. I had told the site owner that since there were 2 AP's affected by this irrational behavior (not limited to a particular time--occurred all hours of the day) I suspected that there was some interference.

 

This site is a marina with 7 AP's. Only 2 were exhibiting this behavior. When the  strange behavior stopped, the marina manager said that there was a big boar with all sorts of electronics onboard and it had left the marina for a while.

 

I have no idea how to find what it interfering with the network, but if and when the boat returns, we're going to have to do some sleuthing! 

 

thanks for your suggestions, but I didn't have to do anyting once that boat left!

 

Art

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Re:EAP 225 AP connectivity isssues
2 weeks ago

Hi  @Byteguy 

 

Thanks for posting here.

 

DISCONNECTED

The connected device has lost connection with the controller for more than 5 minutes

 

Based on your description, this appears to be an unstable connection between the AP and controller. The lack of disconnection notifications might be because you haven't enabled the corresponding option. You can check this setting on the following page(scroll down)

 

Since network connectivity isn't affected, you could uncheck the online status notifications.

 

However, I recommend replacing either the controller's Ethernet cable or the EAP's cable - this kind of issue is typically caused by cabling problems.

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Re:EAP 225 AP connectivity isssues-Solution
2 weeks ago - last edited a week ago

  @Byteguy A couple days ago, the strange performance issues disappeared. I had told the site owner that since there were 2 AP's affected by this irrational behavior (not limited to a particular time--occurred all hours of the day) I suspected that there was some interference.

 

This site is a marina with 7 AP's. Only 2 were exhibiting this behavior. When the  strange behavior stopped, the marina manager said that there was a big boar with all sorts of electronics onboard and it had left the marina for a while.

 

I have no idea how to find what it interfering with the network, but if and when the boat returns, we're going to have to do some sleuthing! 

 

thanks for your suggestions, but I didn't have to do anyting once that boat left!

 

Art

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Re:EAP 225 AP connectivity isssues
a week ago

Hi  @Byteguy 

 

Thanks for the feedback. It make sense.

 


   - The boat may have been equipped with **high-power radio devices** (such as radar, satellite communications, AIS, VHF radios, etc.), which emit strong electromagnetic waves when in operation.  
   - If these devices operate on frequencies overlapping with the 2.4GHz or 5GHz bands used by Wi-Fi access points (APs)—or generate harmonic/sideband interference—they can cause Wi-Fi instability, packet loss, or high latency.  
   - Examples:  
     - Radar (especially older pulse radar systems) can produce interference near 2.4GHz.  
     - Poor shielding on marine electronics may lead to electromagnetic leakage.  

 

Why Were Only Two APs Affected?  
   - Location: The affected APs might have been positioned closer to the boat’s mooring spot or had a direct line of sight to its antennas.  
   - Channel Overlap: If these APs were using Wi-Fi channels overlapping with the interfering frequencies (e.g., Channels 1-11 in 2.4GHz), while others used 5GHz or different channels, they could avoid interference.  

 

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Re:EAP 225 AP connectivity isssues
a week ago

  @Byteguy Doubt it was radar, as it was affecting all times during the day, but who knows. I, too, wonder why only 2 APs were affected. I will check further and post what I find. I also need to find where the boat was tied up. 

Mabey I'll get a chance later today. 

 

Standby....

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Re:EAP 225 AP connectivity isssues
Friday

  @Byteguy The suspect boat left the marina and everything went back to normal. It is expected back, but so far nothing has happened. If the marina manager notifies me that it has returned, it would be interesting to go talk to the owner and find out what kind of electronics are onboard.

 

Just FYI, the one AP that was affected is on Channel 11 / 2462 MHz and channel 36

The second AP that was affected is no Channel 1 / 2412 MHz and channel 36.

 

Not even the same frequency the 2.4 MHz. Channel 36 is the same throughout the marina. 

 

There are 2 more AP's close by but out of 7 AP's only these two were affected. Very strange.

The only way I will be able to troubleshoot is if the boat returns and we start getting anomalies. Then I can go down there and do some troubleshooting.

 

If that happens, I'll post what I found.  Thanks for listening to my whining!

 

Art

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