# Unable to turn on Access Point IN BW16 **URL:** \ **Category:** SDK\ **Tags:** evb-bw16, rtl872xd\ **Created:** [November 13, 2021, 7:54pm UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905 "2021-11-13T19:54:49Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![sonu\_kushwh](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/sonu_kushwh/32/711_2.png) [@sonu\_kushwh](https://forum.amebaiot.com/u/sonu_kushwh)\ **Post date:** [November 13, 2021, 7:54pm UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905/1 "2021-11-13T19:54:49Z")
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 ---
**Author:** ![wyy](https://avatars.discourse-cdn.com/v4/letter/w/bc8723/32.png) [@wyy](https://forum.amebaiot.com/u/wyy)\ **Post date:** [November 15, 2021, 2:46am UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905/2 "2021-11-15T02:46:25Z")
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. ```auto #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 ``` ---
**Author:** ![sonu\_kushwh](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/sonu_kushwh/32/711_2.png) [@sonu\_kushwh](https://forum.amebaiot.com/u/sonu_kushwh)\ **Post date:** [December 1, 2021, 7:08am UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905/3 "2021-12-01T07:08:08Z")
Thank you for your reply, Now I am able to create hotspots successfully, But the problem I face with that. once after creating the hotspot successfully sometimes it disappears and is never discover as a hotspot again, After 7-8 days it starts working fine I discharge all capacitors and all now I am using the only module, not dev kit This is behavior I m not understand. ---
**Author:** ![xidameng](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/xidameng/32/18_2.png) [@xidameng](https://forum.amebaiot.com/u/xidameng)\ **Post date:** [December 3, 2021, 8:13am UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905/4 "2021-12-03T08:13:17Z")
AP mode uses more power, make sure your BW16 module has enough power supply to it,else there might be issues ---
**Author:** ![sonu\_kushwh](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/sonu_kushwh/32/711_2.png) [@sonu\_kushwh](https://forum.amebaiot.com/u/sonu_kushwh)\ **Post date:** [December 15, 2021, 5:07am UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905/5 "2021-12-15T05:07:23Z")
There is an example to restart this module like esp. restart() method ---
**Author:** ![sonu\_kushwh](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/sonu_kushwh/32/711_2.png) [@sonu\_kushwh](https://forum.amebaiot.com/u/sonu_kushwh)\ **Post date:** [December 15, 2021, 5:07am UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905/6 "2021-12-15T05:07:51Z")
There is an example to restart this module like esp. restart() method… ---
**Author:** ![xidameng](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/xidameng/32/18_2.png) [@xidameng](https://forum.amebaiot.com/u/xidameng)\ **Post date:** [December 15, 2021, 7:24am UTC](https://forum.amebaiot.com/t/unable-to-turn-on-access-point-in-bw16/905/7 "2021-12-15T07:24:57Z")
There is a software reset function, but it’s not available under Arduino framework, there are 2 ways you can do this, 1. Using [standard SDK](https://github.com/ambiot/ambd_sdk) and call this [function](https://github.com/ambiot/ambd_sdk/blob/134fd772d7bcaac2f5679c99ae4073a7719424b3/component/common/mbed/targets/hal/rtl8721d/sys_api.c#L189) directly 2. Bring this function to Arduino and make an wrapper for it