@DACZ 

Adding my Network Layout. APARTMENT and GARAGE are ones that disconnects frequently (Both EAP225's). It is HARDWARED all the way back to the AP. And when it's disconnected the other devices around it are connected. All links are 1G which the exception of the SWITCH-HOME is 2.5G with a 2.5G link to the ISP 

  @DACZ 

So I rolled back 1 version on ONE of the EAP225 I have 2 days ago:

AND it has stayed connected, but the other one with the NEWER version is disconnected. Rolling it back NOW. 

TP-LINK.... PLEASE tell me what files I can send you to solve this issue. These are hardwired devices!

Hi  @DACZ 

The issue will disappear when downgraded to 5.1.1?

I have created a TP-Link support ticket to collect more information. And the ID is TKID240919194

  @Vincent-TP 

I have had no issues with disconnects in a week after downgrading my EAP225 units to 5.1.1  It seems to only be an issue with my EAP225 units, the APARTMENT unit and my GARAGE showed disconnected after less than 24 hours on a daily basis. I dropped them back to 5.1.1 and then had 2 of my EAP225 OUTDOOR units go disconnected, so I rolled them back and though I have 1 EAP225 outdoor unit on 5.1.6 it has continued to stay connected (and it's wirelessly connected). Hopefully this will help someone else and TPLINK can dig into this. Could have been a bad 5.1.6 load? Maybe, but on multiple devices?

  Hi @DACZ 

Please check your email inbox and search this ID TKID240919194, we need the information to locate the reason. Thanks.

  @Vincent-TP 

I have no message. I'm more than happy to push the update and gather logs when it does this again. It has been rock solid since going down 1 version on the EAP225's (The devices that were disconnecting after 24 hours on a regular basis.) I even went to omada switches so I could removely reboot and recover. 

Hi  @DACZ 

No problem, just at your convenience.

When I say email, I mean your Gmail inbox.

  @Vincent-TP 

Thank You... Got it

  @DACZ 

Wanted to give folks and update on this as it could help someone else. 5.1.6 firmware on the EAP225 has issues! 5.1.1 is SOLID! 5.1.6 (the latest) works for 24 hours and then the AP experience disconnects. I have POE switches so I do a recovery and then will be good for another 24 hours or so. I ran 5.1.1 for over a week. No issues. I updated yesterday to 5.1.6 and my issue returned. It doesn't effect any other AP's but the EAP225 (both indoor and outdoor): I have forwarded this info to TP-LINK

Today my problem has returned

I am suffering the same issue as DACV although my setup is slighly different. On a daily basis my EAP's gets randomly in a disconnected state (on the OC200) and as a result clients connected to that EAP can no longer access anything (and yes the EAP in question continues to broadcast the SSID's).

My setup:

OC200 - v1.0 : Controller Version 5.14.26.23 / Firmware Version1.31.3 Build 20240620 Rel.80383

ER706W v1.0 : version 1.1.2

SG2210MP v4.20: version 4.20.1

2x EAP245 v1.0: version 5.1.0

1x EAP225 v3.0: version 5.1.6

3 SSIDs (SSID 10, 20 & 30) with VLAN 10, 20 & 30

And VLAN0 as the default (standard) management network having the OC200, ER706, SG2210MP and EAP management IP's

The EAP225 is connected via mesh, the EAP245 are connected with cable. Interestingly enough, in my case the EAP225 doesn't loose connectivity with controller but the EAP245's do get disconnected on a roughly daily basis. Which is getting very annoying.

What is 'wierd' in my situation is that on one of the EAP245 I 'disabled' 2 out of 3 SSIDs (my ER706W is having the ohter 2 SSIDs as temp solution), the one left is only used by a single device, and now doesn't seem to disconnect anymore. The other EAP245 is now having 2 of 3 SSID enabled (I disabled 1) but that one is still get 'disconnected' on a daily basis.

And since the EAP245 are connected with wire and are on the very same management / default vlan as the controller - so all are 'directly connected' from a network point of view.

Also, this issue seem to have started when I introduced the ER706W on my network and placed the OC200 and EAP's on the default VLAN (/ management network) and placed my internal devices on another VLAN