FRITZ!Box 7340 Service - Knowledge Base
FRITZ!Box reports "ERROR: Entry conflicts with an internal rule" when configuring port sharing
You cannot share a TCP or UDP port in the FRITZ!Box. When attempting to configure a port sharing rule, the message "ERROR: Entry conflicts with an internal rule" is displayed.
1 Port is used by the FRITZ!Box
The port you are trying to share is used by the FRITZ!Box itself and therefore cannot be shared for another network device.
Note:Many Internet applications and server services allow you to change the ports for incoming connections. Refer to the manufacturer for information on how to set it up.
The FRITZ!Box uses the following ports:
- TCP port 21 if the option "Internet access to your storage media via FTP/FTPS enabled" is enabled in the user interface
- TCP port 443 if MyFRITZ! or Internet access via HTTPS is enabled in the the user interface
- TCP and UDP port 5060
- UDP ports 7078-7110
- TCP port 8089