Hi Lili, thank you for using our forum, my name is Johnnatan I am part of the Small business Support community. I apologize for you issue you are having, in this case you could try to use different security levels, and also different bandwidth types, it is possible that your device is getting issues finding the Wlan in your current configuration.
I will share for you a link with information with some tip to improve your wireless.
https://supportforums.cisco.com/docs/DOC-29821
I hope you find this answer useful
“Please rate useful posts so other users can benefit from it”
Greetings,
Johnnatan Rodriguez Miranda.
Cisco Network Support Engineer.
“Please rate useful posts so other users can benefit from it”
Greetings,
Johnnatan Rodriguez Miranda.
Cisco Network Support Engineer.