Anyconnect slow with macbook pro wireless

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Jan 18th, 2009
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I am having an issue with anyconnect verison 2.1.0148 on all wireless macbook connections. When I am plugged into a Lan line the throughput seems fine. Anytime I attempt to use the wireless on the macbook pro to connect to anyconnect the throughput is unacceptably slow. I can barely use RDC or apple remote desktop when connected wireless. I have tried changing my mtu size. I would assume that this was an issue with the ssl vpn client, but it is only slow for wireless anyconnect sessions.

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miomalle Sat, 03/28/2009 - 13:02
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Hi,


I had a similar problem on our wireless network and after long lasts we found it was the Mac. As you say, the speed was so slow, and we were using 802.11n!


I found that entering these commands helped on the Mac:


Changes

sudo sysctl -w net.inet.tcp.delayed_ack=0

sudo sysctl -w net.inet.tcp.rfc1323=0

sudo sysctl -w net.inet.tcp.recvspace=32768

sudo sysctl -w net.inet.tcp.sendspace=32768

sudo sysctl -w net.inet.tcp.win_scale_factor=1

sudo sysctl -w net.inet.tcp.sockthreshold=0





Defaults

sudo sysctl -w net.inet.tcp.delayed_ack=3

sudo sysctl -w net.inet.tcp.rfc1323=1

sudo sysctl -w net.inet.tcp.recvspace= 65536

sudo sysctl -w net.inet.tcp.sendspace= 65536

sudo sysctl -w net.inet.tcp.win_scale_factor=3

sudo sysctl -w net.inet.tcp.sockthreshold=64


Hope this helps


Mike

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