-.It Va BlockingTCP Li = yes | no Po no Pc Bq experimental
-This options selects whether TCP connections, when established, should use blocking writes.
-When turned off, tinc will never block when a TCP connection becomes congested, but will have to terminate that connection instead.
-If turned on, tinc will not terminate connections but will block, thereby unable to process data to/from other connections.
-Turn this option on if you also use
-.Va TCPOnly
-and tinc terminates connections frequently.