tag:blogger.com,1999:blog-8647816483036195527.post7554625519204649582..comments2008-11-20T02:18:23.397-05:00John B. Osbornehttp://www.blogger.com/profile/06955773117762415983noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-8647816483036195527.post-77535512808790158612008-11-20T02:18:00.000-05:002008-11-20T02:18:00.000-05:00er... sorry... it&#39;s late...<BR/><BR/>what i meant to say was:<BR/><BR/>sudo bash -c &quot;echo &#39;net.inet.tcp.delayed_ack=0&#39; &gt;&gt; /etc/sysctl.conf&quot;<BR/><BR/>sudo bash -c &quot;echo &#39;net.inet.tcp.recvspace=40960&#39; &gt;&gt; /etc/sysctl.conf&quot;<BR/><BR/>sudo bash -c &quot;echo &#39;net.inet.tcp.rfc1323=0&#39; &gt;&gt; /etc/sysctl.conf&quot;<BR/><BR/><BR/>Those commands will take effect after a reboot.<BR/><BR/>sysctl -w parameter=value will take effect immediately, but not survive a reboot.somearahttp://www.blogger.com/profile/02860604920363132715noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-60208651210196162582008-11-20T02:14:00.000-05:002008-11-20T02:14:00.000-05:00use:<BR/><BR/>sudo bash -c &quot;echo &quot;net.inet.tcp.delayed_ack=0&quot; &gt;&gt; /etc/sysctl.conf&quot;<BR/><BR/>also...<BR/><BR/>net.inet.tcp.recvspace=40960<BR/>(better buffer setting)<BR/><BR/>net.inet.tcp.rfc1323=0<BR/>(the underlying reason using the delayed_ack thing works)somearahttp://www.blogger.com/profile/02860604920363132715noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-27612348826613155542008-11-11T09:17:00.000-05:002008-11-11T09:17:00.000-05:00@Misha<BR/><BR/>I'm not sure about using "echo" to manually edit the that file. The "sysctl" command will change the setting (or allow you to check its current setting).<BR/><BR/>I recommend "sudo sysctl -w net.inet.tcp.delayed_ack=0" to change it, "sudo sysctl -w net.inet.tcp.delayed_ack=3" to change it back to the default, and "sudo sysctl net.inet.tcp.delayed_ack" to check its current setting.<BR/><BR/>Tell me if that works for you.John B. Osbornehttp://www.blogger.com/profile/06955773117762415983noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-15574352722113089272008-11-11T07:01:00.000-05:002008-11-11T07:01:00.000-05:00I whant to set it permanently.<BR/>After typing in terminal<BR/>echo net.inet.tcp.delayed_ack=0 &gt;&gt; /etc/sysctl.conf<BR/>or<BR/>sudo echo net.inet.tcp.delayed_ack=0 &gt;&gt; /etc/sysctl.conf<BR/>I’m getting ‘Permission denied’ error, what do I do wrong?Mishahttp://www.blogger.com/profile/18137270459658237475noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-89233145040329552532008-06-29T20:22:00.000-04:002008-06-29T20:22:00.000-04:00To make TM do a WIRELESS backup as well I had to do two more fixes: <BR/><BR/>1) This one http://www.trajiklyhip.com/blog/index.cfm/2008/5/18/A-Fix-for-Time-Machines-Backup-Failure<BR/>(which really didnt change anything untill I did nr 2...<BR/><BR/>2) In the Airport-tool I changed TC´s channel from 7 (my own setting) to «automatic», which is default<BR/><BR/>and HURRAY. It works.Yermunhttp://www.blogger.com/profile/08307369627783701918noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-74228636131300129542008-06-26T13:38:00.000-04:002008-06-26T13:38:00.000-04:00I have got version 10.5.3 - sad, but true.Yermunhttp://www.blogger.com/profile/08307369627783701918noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-51658313385837233382008-06-26T09:08:00.000-04:002008-06-26T09:08:00.000-04:00Just curious: what Mac OS X version is everyone using who has the problem? What about folks who are not experiencing this problem?<BR/><BR/>I had hoped Apple would have fixed this issue in 10.5.3, but I haven't had a chance to test it yet.<BR/><BR/>Thanks.John B. Osbornehttp://www.blogger.com/profile/06955773117762415983noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-73715192076576807782008-06-26T07:18:00.000-04:002008-06-26T07:18:00.000-04:00Gee, thanks. This fix solved my problem of low internet speed - and I´ve tried a lot of them - including DNS, spotlight prefs. aso. I was nearly giving up on TC. Now I´m only excited if it works for Time Machine as well. I´ll report back on that.Yermunhttp://www.blogger.com/profile/08307369627783701918noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-17614736423581891702008-05-17T12:39:00.000-04:002008-05-17T12:39:00.000-04:00sysctl is a standard part of OSX. If your shell path is messed up, that might give the error. You may want to copy and paste to verify, just in case:<BR/><BR/>sysctl net.inet.tcp.delayed_ack<BR/><BR/>You may need to "sudo" the command to make a change.John@OChttp://www.blogger.com/profile/06955773117762415983noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-74921789871745456972008-05-17T07:48:00.000-04:002008-05-17T07:48:00.000-04:00i get a Command not found when trying to verify the current level.Fuzzbearhttp://www.blogger.com/profile/14078328773237832270noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-16936385324995461912008-04-27T09:44:00.000-04:002008-04-27T09:44:00.000-04:00You probably need to preface the command with "sudo" and enter your admin password.<BR/><BR/> sudo sysctl -w net.inet.tcp.delayed_ack=0<BR/><BR/>You need root rights to affect the change.John@OChttp://www.blogger.com/profile/06955773117762415983noreply@blogger.comtag:blogger.com,1999:blog-8647816483036195527.post-40961214884181843262008-04-27T03:52:00.000-04:002008-04-27T03:52:00.000-04:00sysctl: net.inet.tcp.delayed_ack: Operation not permitted<BR/><BR/>I've fixed my permissions and I'm admin in 10.5.2. What did I do wrong?Pleaseluggagehttp://www.blogger.com/profile/00383140255106933773noreply@blogger.com