ESP8266（Arduino）在Mesh接入点间WiFi连接间歇性中断问询

我在ESP8266克隆板上运行基于Arduino框架的程序，使用原生ESP8266WiFi.h库。在仅能看到单个Netgear Orbi接入点的实验室环境中运行正常，但在能看到两个接入点的房间内，WiFi连接间歇性中断，信号强度良好，但设备性能极差，而同位置的笔记本电脑WiFi连接稳定。

Orbi系统的多个接入点广播相同SSID且处于同一信道，我怀疑ESP8266协议栈因此受到干扰。

已在代码中开启WiFi调试，但调试信息来自Expressif预制库，可获取的有效信息有限；暂未使用Wireshark等工具，手机WiFi分析工具无效，我对代码本身有信心，但缺少应对该场景的方案。

注：MQTT首次连接失败为已知bug，后续多次失败为核心问题。

调试日志示例 #

成功案例 #

15:13:56.873 -> 1db512b-dirty (Tue  2 Jan 15:08:50 GMT 2024)
15:13:56.873 -> External System
15:13:56.906 -> WIFI: INFO: MAC: 40:91:51:52:bd:7e
15:13:56.906 -> WIFI: INFO: inital connection...
15:13:56.906 -> fpm close 1 
15:13:56.906 -> mode : sta(40:91:51:52:bd:7e)
15:13:56.906 -> add if0
15:13:59.863 -> scandone
15:14:00.726 -> state: 0 -> 2 (b0)
15:14:00.760 -> state: 2 -> 3 (0)
15:14:00.760 -> state: 3 -> 5 (10)
15:14:00.760 -> add 0
15:14:00.760 -> aid 3
15:14:00.760 -> cnt 
15:14:00.793 -> 
15:14:00.793 -> connected with XXXX, channel 9
15:14:00.793 -> dhcp client start...
15:14:00.793 -> WIFI: INFO: connected

15:14:02.354 -> ip:10.23.3.142,mask:255.255.252.0,gw:10.23.1.1
15:14:02.388 -> WIFI: INFO: got IP: 10.23.3.142

15:14:02.421 -> MQTT: INFO: starting
15:14:02.421 -> MQTT: INFO: trying to connect
15:14:02.454 -> MQTT: INFO: connect failed; will try again

15:14:07.470 -> MQTT: INFO: trying to connect
15:14:07.503 -> MQTT: INFO: connected

15:14:10.759 -> pm open,type:2 0

失败案例 #

15:13:07.041 -> 1db512b-dirty (Tue  2 Jan 15:08:50 GMT 2024)
15:13:07.075 -> External System
15:13:07.075 -> WIFI: INFO: MAC: 40:91:51:52:bd:7e
15:13:07.075 -> WIFI: INFO: inital connection...
15:13:07.075 -> fpm close 1 
15:13:07.075 -> mode : sta(40:91:51:52:bd:7e)
15:13:07.075 -> add if0
15:13:10.032 -> scandone
15:13:10.928 -> state: 0 -> 2 (b0)
15:13:11.925 -> state: 2 -> 0 (2)
15:13:11.925 -> reconnect
15:13:11.925 -> WIFI: INFO: disconnected

15:13:14.781 -> scandone
15:13:14.781 -> state: 0 -> 2 (b0)
15:13:14.781 -> state: 2 -> 3 (0)
15:13:14.781 -> state: 3 -> 5 (10)
15:13:14.781 -> add 0
15:13:14.781 -> aid 3
15:13:14.781 -> cnt 
15:13:14.814 -> 
15:13:14.814 -> connected with XXXX, channel 9
15:13:14.848 -> dhcp client start...
15:13:14.848 -> WIFI: INFO: connected

15:13:22.820 -> ip:10.23.3.142,mask:255.255.252.0,gw:10.23.1.1
15:13:22.820 -> WIFI: INFO: got IP: 10.23.3.142

15:13:24.780 -> pm open,type:2 0

15:13:25.345 -> MQTT: INFO: starting
15:13:25.345 -> MQTT: INFO: trying to connect
15:13:30.328 -> MQTT: INFO: connect failed; will try again

15:13:35.346 -> MQTT: INFO: trying to connect
15:13:40.330 -> MQTT: INFO: connect failed; will try again

暂未提供代码，若需要可提供GitHub链接。

需要的帮助 #

• 确认该场景是否为已知问题；
• 对调试输出的解释；
• 进一步调试的可行建议。

内容的提问来源于stack exchange，提问作者Edd Inglis