Tiemout expired.

[neivan]

Estoy navegando por mi aplicacion y ultimamente a veces me sale este error,pero salgo vuelvo a entrar y ya no sale,me podria decir alguien por q sucede??Trabajo cn msde (sql server)

Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.