Server Connection
Catalogue Loading Issues
If you Pozi displays the following error message or similar…
Cannot connect to internal data sources. Please reload page. If the problem persists, report this issue to your site administrator.
…there may be a problem with the server, IIS, QGIS Server or MS App Proxy.
Use the following steps to diagnose the problem:
Check server status
Attempt to open a remote desktop connection to your server to confirm that the server is running.
If you have trouble connecting, contact your network administrator.
Check IIS
Check that IIS is running by going to http://localhost on the server. If you don’t have remote desktop access to the server, use http://<internal-server-name>.
If you don’t see the IIS welcome page, open IIS Manager, select your server, and click Start under Manage server.
Check QGIS Server
Check that QGIS Server is running by going to http://localhost/pozi/qgisserver/wfs3.html on the server. If you don’t have remote desktop access to the server, use http://<internal-server-name>/pozi/qgisserver/wfs3.html.
If you don’t see the QGIS Server landing page, try the following:
IIS > (select server) > Application Pools > PoziQgisServer
- if the Start button is not clickable, click Stop
- click Start
Refresh http://<internal-server-name>/pozi/qgisserver/wfs3.html
If you still don’t see the QGIS Server landing page, try the following:
- Restart QGIS Server: Run
iisresetfrom Command Prompt as admin. - Check QGIS Server log: Check the QGIS Server log for any errors:
C:\Pozi\IIS\QgisServer\qgis_server.log
If you’ve recently upgraded QGIS Server, ensure that the environment variable PYTHONHOME is set to the latest Python version.
Python environment variable details
qgis_mapserv.fcgi.exe > Edit > Environment variables > set PYTHONHOME value to C:\OSGeo4W\apps\Python312 or latest Python version.Check that the domain user account that runs QGIS Server is current (ie, has not expired) and has sufficient permissions.
Service user details
IIS > (select server) > Application Pools > PoziQgisServer > Advanced settings > Identity > Application Pool Identity > Custom account
This user account may be named PoziService or similar. Ensure that this domain user account has the permissions outlined at prerequisites.
Check MS App Proxy
Check that the MS App Proxy is running by going to https://<entra-application-client-name>.msappproxy.net/pozi/qgisserver/wfs3.html
If you encounter an error message instead of the QGIS Server landing page, contact your network administrator and provide them with the test link. The error message from the test link will provide vital information for them to investigate.
Installing and Upgrading
QGIS 3.40 on VMWare crashes on open.
There is a known issue with QGIS 3.40 on VMWare with some graphics drivers. The issue causes the QGIS Server to crash. No profile or log is created.
If this issue affects you, downgrade/revert to QGIS 3.28 LTR.
Performance Issues
Pozi takes a long time to start
Use QGIS to determine identify any slow-loading projects. If one or more of your projects takes significantly longer to load than others, then use the QGIS Debugging tool to narrow down which layers are slowing down the project load.
See Performance Testing.
IIS seems to go to sleep
IIS > select server > Application Pools > PoziQgisServer > Advanced Settings:
- General > Start Mode >
AlwaysRunning - Process Model > Idle Time-out (minutes) >
0 - Recycling > Regular Time Interval (minutes) >
0
Caching Issues
Can’t see the latest changes from QGIS in Pozi
Some changes may not be available immediately in Pozi. If you encounter an issue such as a recently added or renamed layer not loading, restart the IIS application pool on the server.
IIS > (select server) > Application Pools > PoziQgisServer > Recycle
For further assistance, contact your Pozi support provider’s helpdesk.