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During past month or so, pretty much since upgrading to 11.2 SR1, we get sporadic "No Connection" error dialogs when trying to open documents (AJAX client) from the access point.
This is a two server setup, one load server (directory service, distribution service, management service) and one access point (QV server, QV web server). The Windows event log on the access point server shows two entries for the QV web server when someone tries to access a document (and get the error dialog), both with the same time stamp and contents:
Failed to get client: Object reference not set to an instance of an object.
Or it's XML representation:
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<Provider Name="QvWebServer" />
<TimeCreated SystemTime="2013-05-13T12:34:26.000Z" />
<Data>Failed to get client: Object reference not set to an instance of an object.</Data>
Plenty of RAM in both servers, but most of it is used all the time on the access point.
What could be causing this?
Bugs in QV web server?