Characters for Passwords, Network Keys and Names

When defining passwords, keys and names, not all characters are allowed, and not all passwords are secure. This is why the FRITZ!Box assists you in assigning secure passwords, for instance when creating new users or configuring MyFRITZ!. A diagram indicates how secure the chosen password is.

When assigning passwords, network keys and names, take note of the following guidelines and lists of available and illegal characters.

Note:When they are defined, passwords are depicted in clear text. Once they have been saved, every time they are entered they will be displayed encoded.

Tips for Strong Passwords

  • The password should contain at least 8 characters.
  • For a strong password, use a combination of the following characters:
    • capital letters
    • lower-case letters
    • numerals
    • special characters and punctuation

Passwords and Network Keys

Available (permitted) CharactersIllegal Characters
  • letters from a to z in lower case and upper case
  • the numerals 0 to 9
  • spaces
  • special characters:

    _ - ! " # $ % & ' ( ) * + , . / : ; < = > ? @ [ \ ] ^ ` { | } ~

  • the letter ß
  • umlauts ä, ö, ü (lower-case) and Ä, Ö, Ü (upper-case)
  • special characters:

    § ´

Names for Users

  • The password field may not be left blank.
  • The name may not begin with spaces.
  • The name may have a maximum of 32 characters.
  • User names must begin with a letter from a to z, in upper or lower case.
Available CharactersIllegal Characters
  • letters from a to z in lower case and upper case
  • the numerals 0 to 9
  • spaces
  • special characters:

    - _ , .

  • the letter ß
  • umlauts ä, ö, ü (lower-case) and Ä, Ö, Ü (upper-case)
  • special characters:

    ! " # $ % & ' ( ) * + / : ; < = > ? @ [ \ ] ^ ` ´ { | } ~

Names for Wireless Networks (SSIDs)

  • The password field may not be left blank.
  • The name may not begin or end with spaces.
  • The name may have a maximum of 32 characters.
Available CharactersIllegal Characters
  • letters from a to z in lower case and upper case
  • the numerals 0 to 9
  • spaces
  • special characters:

    - _ ! " # $ % & ' ( ) * + , . / : ; < = > ? @ [ \ ] ^ ` { | } ~

  • the letter ß
  • umlauts ä, ö, ü (lower-case) and Ä, Ö, Ü (upper-case)
  • special characters:

    § ´

Names for Devices

  • Device names may not start or end with a hyphen
  • Device names may not be composed of only numerals.
Available CharactersIllegal Characters
  • letters from a to z in lower case and upper case
  • the numerals 0 to 9
  • hyphens
  • the letter ß
  • umlauts ä, ö, ü (lower-case) and Ä, Ö, Ü (upper-case)
  • spaces
  • special characters:

    _ ! " # $ % & ' ( ) * + , . / : ; < = > ? @ [ \ ] ^ ` ´ { | } ~