We have a one way method in a WCF service which is being called from another WCF service.All these services are hosted in IIS within an app-pool.Every time when we run the end to end and when service1 calls one way method of service 2 every service in that app-pool starts timing out until the service 2 one way method finishes its operation.I dont understand why that's happening.The worker processes for this app-pool are set to 1 .If I change to 20 it starts working but dont know how much load it can bear.Please help.