Our performance testing team is running test on our WPF-WCF-Sql Server application and they are facing connection timeout after the load goes above 75 users Error -27796: Failed to connect to server "81.171.180.119:4567": [10060] Connection timed out I would like to know what can be steps to look at bottlenecks which may be causing issues like maybe some setting in Load Runner or identify the code bottlenecks. Thanks