I have an existing TPLink Omada in the hotel with this current setup. 

ISP (1000gbps fiber line) (192.168.5.1/24)
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                               V
Switch (TL-SG3428 v2.30 FW: 2.30.0)
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             V                           V
EAP110 (46 units)    Hardware Controller 
(v3 FW 5.0.7)        (OC300 v1.0 Controller Ver: 5.13.30.20)
            
    
I purchased ER7206 v1 (1.2.3 Build 20221104) to provide more IP addresses for the client. Before I connected to the network, I updated the firmware, changed the password, and changed the IP to 172.16.0.1/22 I checked it and it works. I didn't see any problems; all the devices adopted the new ip address, and OC300 was online,

But when I adopted it to the controller, it said adopting, provisioning, and after a minute, it said TIMEOUT. I troubleshooted the problem and i found out that ER7206 is not providing an internet connection, (i connected my laptop to ER7206 port 5). I try to restart everything, but still the problem exists.

I also try ER7206 in default mode still not work

ISP (1000gbps fiber line) (192.168.5.1/24)
                                    |

                                   V
ER7206 v1 (1.2.3 Build 20221104) (172.16.0.1/22)
                                    |

                                   V
Switch (TL-SG3428 v2.30 FW: 2.30.0)
              |                                 |

             V                                V
EAP110 (46 units)    Hardware Controller 
(v3 FW 5.0.7)        (OC300 v1.0 Controller Ver: 5.13.30.20)