# After 'app stop', cannot found 'wlan0' **URL:** \ **Category:** Uncategorized\ **Created:** [August 10, 2022, 7:47am UTC](https://forum.legato.io/t/after-app-stop-cannot-found-wlan0/6265 "2022-08-10T07:47:57Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![tanaporn\_y](https://avatars.discourse-cdn.com/v4/letter/t/c0e974/32.png) [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\ **Post date:** [August 10, 2022, 7:47am UTC](https://forum.legato.io/t/after-app-stop-cannot-found-wlan0/6265/1 "2022-08-10T07:47:57Z")
After stop app board cannot found “Wlan0” and cannot connect to wifi after using command to wlan0 up.(using wp7605) this is what I have got from dmesg after reconnect wifi. [wifi\_reipset2.txt](https://forum.legato.io/uploads/short-url/9tgCsGhyDJ8mhvScJvdXzVKkiw8.txt) (542.9 KB) [dmsg.txt](https://forum.legato.io/uploads/short-url/lVw0KPBxiLEptFlXpma3szn54cr.txt) (26.8 KB) ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [August 10, 2022, 8:09am UTC](https://forum.legato.io/t/after-app-stop-cannot-found-wlan0/6265/2 "2022-08-10T08:09:57Z")
which application have you stopped? Why do you need to stop this app? ---
**Author:** ![tanaporn\_y](https://avatars.discourse-cdn.com/v4/letter/t/c0e974/32.png) [@tanaporn\_y](https://forum.legato.io/u/tanaporn_y)\ **Post date:** [August 10, 2022, 8:18am UTC](https://forum.legato.io/t/after-app-stop-cannot-found-wlan0/6265/3 "2022-08-10T08:18:52Z")
it was the app that I have write and didn’t stop but the second time still error. ---
**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/jyijyi/32/822_2.png) [@jyijyi](https://forum.legato.io/u/jyijyi)\ **Post date:** [August 10, 2022, 8:22am UTC](https://forum.legato.io/t/after-app-stop-cannot-found-wlan0/6265/4 "2022-08-10T08:22:18Z")
do you have the console log? Not quite understand what command have you entered