I've attached a code snippet here http://pastebin.com/L9DQupxZ

We've been experiencing connection issues in our production application since switching to C# for our main mongo processing tool.

After a large read i.e select all from table (8000 Documents) the c# driver throws a 'no host is known' error and crashes or a 'server ip- xxx.xxx.xxx is no longer connected'

In the aftermath of this event I decided to test our database by inserting a large number of records using a very simple c# console application as shown in the screenshot attached it makes about 100 - 150 inserts and then throws the same error continues to fail inserts a few more records and then fails constantly forever.

This occurs on a Mongo DB instance Setup on Amazons EC2 it also Occurs on a free MongoLab DB and a High Availability MongoLab DB