"Connection Fail : Err-05" appears on the LCD Display Screen. What does it mean?

The wireless security information (Authentication method/Encryption method/Network Key (Password)) is incorrect.

Your machine supports the following authentication methods:
Reconfirm the wireless security information.

Authentication method Encryption method
WPA-Personal TKIP
WPA2-Personal AES
Open WEP
None (without encryption)
Shared key WEP


See How to find the Network Name (SSID) and Network Key (Password)?

If your question was not answered, have you checked other FAQs?

Have you checked the manuals?

If you need further assistance, please contact Brother customer service:

Related Models

CM350, CM350e, CM350H, CM350R, CM650W, CM650WX, SDX125, SDX125e, SDX125e Titanium, SDX125i, SDX125TS, SDX135PRO, SDX225, SDX225F, SDX230D, SDX230Di, SDX230DX, SDX325, SDX330D, SDX85, SDX85C, SDX85M, SDX85S

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