The internet connection of a single application is cleared after about 15 minutes, although you can open web pages on the same computer at the time the error occurred. This issue occurs with SSH (Secure Shell) or Telnet connections to remote sites on the internet, for example.

Cause

• If no data is exchanged over a TCP connection for 15 minutes, or if no data is exchanged over a UDP connection for 5 minutes, the FRITZ!Box automatically deletes the respective connection(s) from its NAT table ("NAT Timeout"). This ensures the security of devices in the FRITZ! home network and prevents performance loss during internet access. As a result, all of the ports that were used by these connections are closed and the internet connection of the corresponding application is cleared.