esp32 smartconfig不成功是为什么？

使用两个设备下载 smartconfig程序 发现一个可以，另一个不行,配网不成功的卡在 I (7389) smartconfig: SC version: V2.9.0 不知道为什么

I (1009) wifi:Init management short buffer num: 32

I (1019) wifi:Init dynamic tx buffer num: 32

I (1019) wifi:Init static rx buffer size: 1600

I (1019) wifi:Init static rx buffer num: 10

I (1029) wifi:Init dynamic rx buffer num: 32

I (1029) wifi_init: rx ba win: 6

I (1039) wifi_init: tcpip mbox: 32

I (1039) wifi_init: udp mbox: 6

I (1039) wifi_init: tcp mbox: 6

I (1049) wifi_init: tcp tx win: 5744

I (1049) wifi_init: tcp rx win: 5744

I (1059) wifi_init: tcp mss: 1440

I (1059) wifi_init: WiFi IRAM OP enabled

I (1059) wifi_init: WiFi RX IRAM OP enabled

I (1069) phy_init: phy_version 4660,0162888,Dec 23 2020

I (1169) wifi:mode : sta (94:b9:7e:41:5d:dc)

I (1169) smartconfig_example: event_id 02



I (1169) smartconfig_example: start connect wifi



I (3219) smartconfig_example: event_id 05



I (3219) smartconfig_example: s_retry_num:0

I (3219) smartconfig_example: retry to connect to the AP

I (3229) smartconfig_example: connect to the AP fail

I (5279) smartconfig_example: event_id 05



I (5279) smartconfig_example: s_retry_num:1

I (5279) smartconfig_example: retry to connect to the AP

I (5279) smartconfig_example: connect to the AP fail

I (7329) smartconfig_example: event_id 05



I (7329) smartconfig_example: s_retry_num:2

I (7329) smartconfig_example: connect to the AP fail

I (7389) smartconfig: SC version: V2.9.0