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Issue with Mesh between EAP 245 and EAP 225 Outdoor

Issue with Mesh between EAP 245 and EAP 225 Outdoor

Issue with Mesh between EAP 245 and EAP 225 Outdoor
Issue with Mesh between EAP 245 and EAP 225 Outdoor
2025-05-06 20:08:00 - last edited 2025-05-07 22:24:44
Tags: #Mesh
Model: EAP245   EAP225-Outdoor  
Hardware Version:
Firmware Version:

I just unboxed and configured a new EAP 225 Outdoor to use out in the yard for mesh as my signal was not quite satisfactory. In configuring the device, It was able to connect via mesh to my other existing EAP 225 Outdoor, but not my EAP 245, which is closer and should provide a better signal to it.

Is there a reason that these devices wont mesh? Is there something I'm missing? Are the indoor and outdoor AP devices designed to mesh with eachother?

Devices in use:
- Existing Indoor AP: EAP 245, Hardware V3, Firmware v5.0.5
- Existing Outdoor AP: EAP 225, Hardware V1, Firmware v5.0.5

- NEW Outdoor AP: EAP 225, Hardware V3, Firmware v5.1.6
 

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#1
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1 Accepted Solution
Re:Issue with Mesh between EAP 245 and EAP 225 Outdoor-Solution
2025-05-07 22:24:28 - last edited 2025-05-07 22:24:44

  @Vincent-TP 

Neither of these were valuable suggestions. But it was nice of you to mark your own useless comment as a recommended solution, Vincent.
Is this standard practice for TP-Link forum moderators? Whats the value in a forum when there isnt any actual discussion to find a solution?

But I digress. I was able to figure it out myself by looking at the available bands on the EAP 225 Outdoor units. They only operate on channels 149-161 in the 5ghz band, NOT channels 36-48 (at least in Canada). From my admittedly limited research, this is due to the Canadian spectrum rules requiring a license for high power (>200mW) transmission outdoors on the 36-48 5ghz channels. Not sure how that compares to the US or other areas, check your own device in your area, see which 5ghz channels can be selected in the configuration menu.

So, the crux of the issue was that my EAP 245 Indoor was transmitting on a channel in the 36-48 range, so the EAP 225 outdoor could not receive on that frequency. Changing my EAP 245 Indoor to a channel in the 149-161 range solved the issue.

TLDR: Check your channels folks! Indoor and Outdoor APs might have different channels available for RX/TX!

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#4
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5 Reply
Re:Issue with Mesh between EAP 245 and EAP 225 Outdoor
2025-05-06 21:00:27

Based on another post, I checked that the Channel Limit was not enabled for the site (Channel Limit Post).
Based on another post, I checked that all the firmwares are Canadian and using Canadian hardware (Firmware Local Mismatch Post)

Evidently, neither of this seem to be the issue.

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#2
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Re:Issue with Mesh between EAP 245 and EAP 225 Outdoor
2025-05-07 07:42:43 - last edited 2025-05-07 22:10:36

Hi  @Awbmilne 

 

First of all, EAP225-outdoor can mesh with EAP245.

 

As an outdoor AP, the EAP225-Outdoor has significantly stronger wireless signal transmission capabilities compared to the indoor EAP245.

This could be the reason for the case.  

You can try either of these adjustments:  
1. Reduce the TX power of the other EAP225-Outdoor.  


2.Manually select the EAP245 as the uplink AP for this mesh EAP225-Outdoor.  

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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#3
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Re:Issue with Mesh between EAP 245 and EAP 225 Outdoor-Solution
2025-05-07 22:24:28 - last edited 2025-05-07 22:24:44

  @Vincent-TP 

Neither of these were valuable suggestions. But it was nice of you to mark your own useless comment as a recommended solution, Vincent.
Is this standard practice for TP-Link forum moderators? Whats the value in a forum when there isnt any actual discussion to find a solution?

But I digress. I was able to figure it out myself by looking at the available bands on the EAP 225 Outdoor units. They only operate on channels 149-161 in the 5ghz band, NOT channels 36-48 (at least in Canada). From my admittedly limited research, this is due to the Canadian spectrum rules requiring a license for high power (>200mW) transmission outdoors on the 36-48 5ghz channels. Not sure how that compares to the US or other areas, check your own device in your area, see which 5ghz channels can be selected in the configuration menu.

So, the crux of the issue was that my EAP 245 Indoor was transmitting on a channel in the 36-48 range, so the EAP 225 outdoor could not receive on that frequency. Changing my EAP 245 Indoor to a channel in the 149-161 range solved the issue.

TLDR: Check your channels folks! Indoor and Outdoor APs might have different channels available for RX/TX!

Recommended Solution
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#4
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Re:Issue with Mesh between EAP 245 and EAP 225 Outdoor
2025-05-08 01:53:59 - last edited 2025-05-08 01:55:02

  @Awbmilne 

 

 

Thanks for sharing the actual solution of your case.

I should have considered channel issues first. while this isn't the only or definitive answer.

The suggestions I provided might not apply to your situation, but we can't say they're completely useless—they have indeed helped resolve similar cases before.

 

Our team may mark replies as solution to streamline unresolved threads, but this is never intended to dismiss valid unresolved issues.

I agree the label may have been premature.

 

But still, thank you for your suggestion. I’ll try to avoid this situation in the future.

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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#5
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Re:Issue with Mesh between EAP 245 and EAP 225 Outdoor
2025-06-24 19:12:01

  @Awbmilne 

 

Thanks for sharing the solution. After some changes (due to another issue I have) connectivity with my EAP225 (outdoors) - in mesh - got in 'disconnected' state, and I tried a couple of things (yet not changing the channels), connectivity wasn't restored. 

 

Changing on one of "root EAPs" the 5Ghz channel to a higher one (in my case above channel 96) did the trick.

 

Only unfortunate thing (but that has nothing to do with your solution). In the Netherlands channel 96 and above are subject to radar transimissions potentially setting the 5Ghz channel back to a low one, if radar is detected. 

 

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#6
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