This chapter contains many tips and practical guidelines directly from the Office Communications Server 2007 R2 product, support, and consulting teams. When working through a problem, start with the guidance provided at the beginning of the chapter. Attempt to simplify the scenario and gather as much information as possible about what is occurring. Look at event logs and trace logs from the client or server, validate network connectivity, and validate that servers are operational and configured as expected. The validation wizard is helpful in this regard, and many problems can be discovered easily before they are actually encountered.