I have an override campaign, with one banner, no delivery capping,unlimited impressions and no expire date, served in the same page with an openx campaign ( geotargeted which means it will have fewer impressions than the other ).
For the May 3rd here is the stats from both banners and my daily analytics.
Revive ad server : 2763 impressions
Openx : 4054 impressions
Google analytics: 2570 unique, 3176 sessions, 11398 pageviews
As you can see the difference is big and I can't understand why this is happening. I tested my page many times and the banner always loads, even after 100 refreshes.
I have revive ad server 3.1.0 installed.