Canon EOS 6D Mark II Wi-Fi Wireless Communication Function Instruction Manual - Page 145

Responding to Error Messages 65: Wireless LAN connection lost  Are any obstacles blocking the line of sight between the camera and the antenna of the access point?  Move the antenna of the access point to a position clearly visible from the point of view of the camera (p.153).  The Wi-Fi connection was lost for some reason, and the connection cannot be restored.  The following are possible reasons: excessive access to the access point from another device, a microwave oven or similar appliance in use nearby (interfering with IEEE 802.11b/g/n (2.4 GHz band)), or influence of rain or high humidity (p.153). 66: Incorrect wireless LAN password  Are the camera and the access point set to use the same password for authentication?  The setting is case-sensitive, so check upper- and lower-case characters. Make sure that the correct password for authentication is set on the camera (p.120). 67: Incorrect wireless LAN encryption method  Are the camera and the access point set to use the same encryption method?  The camera supports the following encryption methods: WEP, TKIP, and AES (p.109).  If filtering by MAC address is active, is the MAC address of the camera used registered at the access point?  Register the MAC address of the camera used to the access point. The MAC address can be checked on the [View info] screen (p.135). 145