@@ -98,6 +98,21 @@ If this happens, setting a few JVM options should fix your issue:
Alternatively, you can upgrade to Java 8 instead, which will fix the issue as well.
### Metabase fails to connect to H2 Database on Windows 10
In some situations the Metabase JAR needs to be unblocked so it has permissions to create local files for the application database.
On Windows 10, if you see an error message like
Exception in thread "main" java.lang.AssertionError: Assert failed: Unable to connect to Metabase DB.
when running the JAR, you can unblock the file by right-clicking, clicking "Properties", and then clicking "Unblock".
See Microsoft's documentation [here](https://blogs.msdn.microsoft.com/delay/p/unblockingdownloadedfile/) for more details on unblocking downloaded files.
There are a few other reasons why Metabase might not be able to connect to your H2 DB. Metabase connects to the DB over a TCP port, and it's possible
that something in your `ipconfig` configuration is blocking the H2 port. See the discussion [here](https://github.com/metabase/metabase/issues/1871) for
