I'm trying to get rid of this error on Yosemite with the 2.9.2 version of the "Eddie" client. The config I'm using over TCP 443. "Protocol TCP, port 443" I am unable to connect, and I always see the following in the logs: ". 2015.04.17 16:23:46 - OpenVPN > Opening utun (connect(AF_SYS_CONTROL)): No buffer space available" If I go to "Preferences->Advanced->OVPN directives->Custom", I can set "sendbuf 8192", which causes fewer of these errors to happen. I can also set "verb 5" to see lots of logging and I can set "recvbuf 8192". What I am unable to do is set all three of these settings together. I've even tried to add them with spaces, tabs, commas, and semicolons, to no avail. How can I specify both sendbuf and recvbuf using the OVPN directive option? Is this a bug in the Eddie client? Thanks.