I believe this will help.
6. Enable the Wireless Access Point (ASA 5506W-X) The ASA 5506W-X wireless access point is disabled by default. Connect to the access point GUI so you can enable the wireless radios and configure the SSID and security settings. Before You Begin This procedure requires you to use the default configuration. Procedure 1. On the computer connected to the ASA inside network, launch a web browser. 2. In the Address field, enter http://192.168.10.2. You are prompted for the username and password. 3. Enter the username cisco and the password Cisco. The access point GUI appears. 4. On the left, click Easy Setup > Network Configuration. 5. In the Radio Configuration area, for each of the Radio 2.4GHz and Radio 5GHz sections, set the following parameters and click Apply for each section: — SSID 7 Cisco ASA 5506-X Series Quick Start Guide 7. Launch ASDM — Broadcast SSID in Beacon — Universal Admin Mode: Disable — Security (of your choosing) 6. On the left, click Summary, and then on the main page under Network Interfaces, click the hotlink for the 2.4 GHz radio. 7. Click the Settings tab. 8. For the Enable Radio setting, click the Enable radio button, and then click Apply at the bottom of the page. 9. Repeat for the 5 GHz radio.
