Knowledge Base
AVM Content
- FRITZ!Box 7690
- FRITZ!Box 7682
- FRITZ!Box 7590 AX
- FRITZ!Box 7590
- FRITZ!Box 7583 VDSL
- FRITZ!Box 7583
- FRITZ!Box 7582
- FRITZ!Box 7581
- FRITZ!Box 7560
- FRITZ!Box 7530 AX
- FRITZ!Box 7530
- FRITZ!Box 7520
- FRITZ!Box 7510
- FRITZ!Box 7490
- FRITZ!Box 7430
- FRITZ!Box 6890 LTE
- FRITZ!Box 6850 5G
- FRITZ!Box 6850 LTE
Cannot access an HTTPS server in the FRITZ! home network
Devices in the home network cannot access a server in the home network (for example a web server, NAS system) via HTTPS (port 443). When you try to use the MyFRITZ! address or dynamic DNS domain name (for example https://[Domain name]) of the FRITZ!Box, the FRITZ!Box user interface is displayed.
However, you can use the server's IPv4 address to access it via HTTPS. You can also use the MyFRITZ! address or dynamic DNS domain name to access the server over the internet via HTTPS if a corresponding port sharing is configured for port 443.
Cause
- Modern devices prefer to use IPv6 instead of IPv4. The device therefore receives the FRITZ!Box's IPv6 WAN address in response to its DNS query for the IPv6 address for the MyFRITZ! address or the dynamic DNS domain name. Since there is no network address translation (NAT) in IPv6, the device then accesses the FRITZ!Box itself via HTTPS.
There are several ways to solve this problem, depending on whether you use MyFRITZ! or a different dynamic DNS provider.
1 Setting up a MyFRITZ! sharing
If you are using MyFRITZ! and trying to access the server via the MyFRITZ! address of the FRITZ!Box:
- Set up a MyFRITZ! sharing for the server that you want to access via HTTPS.
2 Setting up dynamic DNS in the HTTPS server
If you want to access the server via a dynamic DNS domain name, disable dynamic DNS in the FRITZ!Box and set up the dynamic DNS account in the server itself instead:
- Click "Internet" in the FRITZ!Box user interface.
- Click "Permit Access" in the "Internet" menu.
- Click on the "DynDNS" tab.
- Disable the option "Use DynDNS".
- Click "Apply" to save the settings.
- Set up the dynamic DNS account in the server you want to access via HTTPS.