In my Lizmap project, some external WMS layers do not load at all. I tried different sources and formats (WMTS, WFS), but the issue persists.
The strange part is that these layers work perfectly in my QGIS project. Additionally, some WMS layers do load correctly in Lizmap, but others (such as Natura 2000 layers) fail to load.
I have checked the Lizmap logs and inspected my project configuration, but I don’t see any obvious issues.
Has anyone encountered a similar problem or has an idea of what might be causing this?
You should check your QGIS server logs.
If think you should see something like about your WMS/WFS layers :
**SLL Handshake failed**
QGIS is trying to write its handshakes results in a SQLite database. You must set where QGIS can write this file (which is by default in the current user home directory, but if you are using www-data, then this home folder does not exist).
Have a look to QGIS_AUTH_DB_DIR_PATH and QGIS_OPTIONS_PATH.