....and again.
Was checking the settings, and changed the mpeg quality level, and touched the dynamic range setting, and all was well, then somewhere in there it blew up again and went back.
See 3:30 all is fine, things blow up a bit, presumably as I changed something like dynamic range. Then I closed the Geovision app (wasn't looking at the feed at the time) and by 4:40 things are back to the degraded state. I'm trying to narrow things down to a particular setting, but changing them around and staring at the feed results in no changes now. Not sure what gets it back to the clean state before it blows up again.
I can't seem to attribute the good image / bad image difference to anything I'm doing. I've only got the dynamic range setting and auto-iris on/off (which has been off for years afaik), and changing these around results in no change to the blurry image when I'm actually looking at it.