Configuring Software and Hardware Firewalls to Support NI Products

Why Do I Get Error 60 When Closing and Opening a TCP Connection on the Same Local Port?

• Take a look at: http://digital.ni.com/public.nsf/allkb/119D334B8B78732E862574E1006D1839

By default, LabVIEW uses the Nagle algorithm when doing TCP communication.

The Nagle algorithm is one of the basic algorithms of TCP that helps reduce Internet traffic by combining several small packets into a single large one. While this increases the efficiency of sending large messages such as those commonly sent in normal Internet traffic, the algorithm can introduce some latency for situations where small amounts of information are being sent back and forth, such as in instrument handshaking.

• https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019NZfSAM&l=en-US