Hi, I am able to connect from Compass and perform all CRUD operations on collection. However, I am getting below exception when doing insert using .Net driver. 

I have also tested by "Allow from Anywhere" option in IP Whitelisting but that doesn't work either.

Here is my connection string

"mongodb+srv://mongodb-user:password@my-production-i5mve.mongodb.net/?retryWrites=true&w=majority&ssl=true&connect=replicaSet"

I also tried by adding/removing options in connection string. e.g. removing connect=replicaSet etc. But nothing worked.

A timeout occured after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector

}. Client view of cluster state is { ClusterId : "1", ConnectionMode : "ReplicaSet", Type : "ReplicaSet", State : "Disconnected", Servers : [], DnsMonitorException : "DnsClient.DnsResponseException: Unhandled exception
---> System.IndexOutOfRangeException: Reading IPv4 address, expected 4 bytes.
at DnsClient.DnsDatagramReader.ReadIPAddress()
at DnsClient.DnsRecordFactory.GetRecord(ResourceRecordInfo info)
at DnsClient.DnsMessageHandler.GetResponseMessage(ArraySegment`1 responseData)
at DnsClient.DnsUdpMessageHandler.Query(IPEndPoint server, DnsRequestMessage request, TimeSpan timeout)
at DnsClient.LookupClient.ResolveQuery(IReadOnlyCollection`1 servers, DnsMessageHandler handler, DnsRequestMessage request, Boolean useCache, LookupClientAudit continueAudit)
— End of inner exception stack trace —
at DnsClient.LookupClient.ResolveQuery(IReadOnlyCollection`1 servers, DnsMessageHandler handler, DnsRequestMessage request, Boolean useCache, LookupClientAudit continueAudit)
at DnsClient.LookupClient.QueryInternal(IReadOnlyCollection`1 servers, DnsQuestion question, Boolean useCache)
at DnsClient.LookupClient.Query(String query, QueryType queryType, QueryClass queryClass)
at MongoDB.Driver.Core.Misc.DnsClientWrapper.ResolveSrvRecords(String service, CancellationToken cancellationToken)
at MongoDB.Driver.Core.Clusters.DnsMonitor.Monitor()" }.