I have a the following server side app.config for a WCF service:
There's more settings :-) Try "maxBufferPoolSize" and "maxBufferSize" on the
tag.
But the biggest problem is: your endpoint does not reference that binding configuration!
You need to add a reference to it so that it gets useful - just calling it "default" doesn't work.....
You're ahead of your times ;-) In WCF 4 (with .NET 4.0 - sometime later this year 2009), you'll be able to define "default binding configurations" without having to explicitly name and reference them - but for now, you need to create a link between your endpoint and its binding and any binding (or behavior) configuration you have!
Marc