Unable to turn on Access Point IN BW16

Hello I am new to this board I am able to program and run properly able to connect with the wifi, I am using the Arduino but when I try to make the Access Point I am running example I got this error.
===========================Error==============
Starting AP …
#calibration_ok:[2:19:11]
interface 0 is initialized
interface 1 is initialized
Initializing WIFI …
WIFI initialized
LwIP_DHCP: dhcp stop.
Deinitializing WIFI …
WIFI deinitialized
Initializing WIFI …
WIFI initialized

====================Error END============

I am using the accesspoint example …Please help
Thanks

HI @sonu_kushwh,

can you provide more information on the error?
I have tried the WiFIAPMode example on the BW16 board, using board package 3.1.0, and was able to start the access point normally.

#calibration_ok:[2:19:11] 
interface 0 is initialized
interface 1 is initialized
Initializing WIFI ...
WIFI initialized
IPv4 enabled
LwIP_DHCP: dhcp stop.
Deinitializing WIFI ...
WIFI deinitialized
Initializing WIFI ...
WIFI initialized
Starting AP ...
yourNetwork started