On-site reports abnormal error when connecting to outdoor AP

1. Check configuration with no abnormalities
wlan service-template 1
ssid XXX
akm mode psk
preshared-key pass-phrase cipher $c$3$CSFchpo6tYoYHAlu56K2sfNPNdp1W3PHdm7/BSPJ
cipher-suite ccmp
security-ie rsn
service-template enable
wlan ap
Ombra
model WA6620X
serial-id 219801A2XXXXXXX
firmware-upgrade disable
vlan 1
radio 1
radio enable
service-template 1 vlan-group a
service-template 2 vlan 255
radio 2
radio enable
service-template 1 vlan-group a
service-template 2 vlan 255
gigabitethernet 1
gigabitethernet 2
2. Collect debug information, error reported as Failed to access client because this radio needs load balance.
According to the debug error message, after disabling wlan radio-load-balance overload-5g ssid-hide enable, terminals can connect normally