Fritz!Box Homey Webapp SSL Connection Issue and Solution

Hello everyone, I recently encountered an issue with my Fritz!Box and Homey setup that I thought might be helpful to share. The problem was related to SSL connections when accessing Homey via a web app through the browser, specifically using Homeydash. Initially, I noticed that the connection was going through the cloud instead of the local network, which caused problems during internet outages. Homeydash wouldn’t work at all when the internet was down, which was quite frustrating.After some research, I found out that the issue was due to the Fritz!Box’s DNS Rebind Protection. This feature prevents DNS rebinding attacks by blocking certain types of DNS queries. However, in my case, it was inadvertently blocking the local connection to Homey. To fix this, I had to adjust the DNS settings on my Fritz!Box.Here’s what I did to resolve the issue:1. Logged into the Fritz!Box Web Interface: I accessed the Fritz!Box settings by going to fritz.box in my browser.2. Found the Homey IP Address: Under the network settings, I located the IP address assigned to my Homey device. Let’s say it was 192.168.178.123 for this example.3. Activated Advanced View: In the network settings, I enabled the advanced view to access more detailed configuration options.4. Modified DNS Settings: I navigated to the DNS Rebind Protection settings and added an exception for the Homey domain. The format required was 192-168-178-123.homey.homeylocal.com.5. Saved the Changes: After adding the exception, I made sure to save the settings.To verify if the change worked, I checked the developer tools on Homey’s website. I navigated to https://developer.athom.com/tools/system and looked for the connection status. It now showed Connection Local (Secure), indicating that the local SSL connection was successfully established.This fix means that even if my internet goes down, Homeydash will still work locally, which is a huge relief. I hope this solution helps others who might be experiencing similar issues with their Fritz!Box and Homey setup. If you have any questions or need further clarification, feel free to ask!