8634 Views 17 Replies
      Latest reply on Jul 16, 2018 8:31 PM by Spinal
      jarheadii Level 1 Level 1 (0 points)
      jarheadii Oct 19, 2016 8:33 AM

        I just upgraded to macOS Sierra last week and realized that Network Link Conditioner doesn't work anymore.

        Any solutions for fix it? Or if someone know a similar network traffic limiter app.

         

        Thanks in advance.

        • Re: Network Link conditioner doesn't work on macOS Sierra
          eskimo Apple Staff Apple Staff (12,715 points)
          eskimo Oct 19, 2016 3:30 PM (in response to jarheadii)

          Network Link Conditioner is quite tightly bound to the kernel architecture and, as such, has to be updated with each major OS release.  Did you install the Xcode 8 version?  If not, you should.

          You can find this by:

          1. launching Xcode 8

          2. choosing Xcode > Open Developer Tool > More Developer Tools

          3. finding, downloading and installing Additional Tools for Xcode 8

          Share and Enjoy
          —
          Quinn “The Eskimo!”
          Apple Developer Relations, Developer Technical Support, Core OS/Hardware
          let myEmail = "eskimo" + "1" + "@apple.com"

            • Re: Network Link conditioner doesn't work on macOS Sierra
              jarheadii Level 1 Level 1 (0 points)
              jarheadii Oct 22, 2016 6:34 AM (in response to eskimo)

              yes Xcode 8 it's already on my computer, but when I launch Network link conditioner, I switch on but it has no effect on my network connectivity, even when set to 100% loss.

                • Re: Network Link conditioner doesn't work on macOS Sierra
                  eskimo Apple Staff Apple Staff (12,715 points)
                  eskimo Oct 24, 2016 3:09 AM (in response to jarheadii)

                  It’s working for me.  Here’s what I did:

                  1. On 10.12, I downloaded the Additional Tools for Xcode 8 disk image.

                  2. I mounted it and double clicked Network Link Conditioner.prefPane.

                  3. That brought me to System Preferences, where I clicked Install to install preferences pane.

                  4. In the preferences pane, I created a new profile called latency, where each of the Delay fields is see to 300 milliseconds.

                  5. In Terminal, I started pinging a local device; the ping time was a few milliseconds.

                  6. Back in the preferences pane, I activated my profile; looking at Terminal, I saw the ping time jump to over 300 milliseconds.

                  &. I then deactivate my profile; the ping time returned to normal.

                  Here’s a transcript of what I saw in Terminal:

                  $ ping fluffy.local.
PING fluffy.local (192.168.1.39): 56 data bytes
64 bytes from 192.168.1.39: icmp_seq=0 ttl=64 time=2.722 ms
64 bytes from 192.168.1.39: icmp_seq=1 ttl=64 time=2.187 ms
64 bytes from 192.168.1.39: icmp_seq=2 ttl=64 time=2.092 ms
64 bytes from 192.168.1.39: icmp_seq=3 ttl=64 time=2.408 ms
64 bytes from 192.168.1.39: icmp_seq=4 ttl=64 time=2.536 ms
64 bytes from 192.168.1.39: icmp_seq=5 ttl=64 time=303.466 ms
64 bytes from 192.168.1.39: icmp_seq=6 ttl=64 time=302.965 ms
64 bytes from 192.168.1.39: icmp_seq=7 ttl=64 time=302.052 ms
64 bytes from 192.168.1.39: icmp_seq=8 ttl=64 time=302.970 ms
64 bytes from 192.168.1.39: icmp_seq=9 ttl=64 time=302.708 ms
…
64 bytes from 192.168.1.39: icmp_seq=185 ttl=64 time=302.126 ms
64 bytes from 192.168.1.39: icmp_seq=186 ttl=64 time=302.047 ms
64 bytes from 192.168.1.39: icmp_seq=187 ttl=64 time=303.105 ms
64 bytes from 192.168.1.39: icmp_seq=188 ttl=64 time=302.251 ms
64 bytes from 192.168.1.39: icmp_seq=189 ttl=64 time=302.295 ms
64 bytes from 192.168.1.39: icmp_seq=190 ttl=64 time=2.401 ms
64 bytes from 192.168.1.39: icmp_seq=191 ttl=64 time=2.208 ms
64 bytes from 192.168.1.39: icmp_seq=192 ttl=64 time=2.412 ms
64 bytes from 192.168.1.39: icmp_seq=193 ttl=64 time=2.422 ms
64 bytes from 192.168.1.39: icmp_seq=194 ttl=64 time=2.495 ms
…

                  Please try this out and let me know what you see.

                  Share and Enjoy
                  —
                  Quinn “The Eskimo!”
                  Apple Developer Relations, Developer Technical Support, Core OS/Hardware
                  let myEmail = "eskimo" + "1" + "@apple.com"

              • Re: Network Link conditioner doesn't work on macOS Sierra
                jlstmac Level 1 Level 1 (0 points)
                jlstmac Oct 26, 2016 12:05 AM (in response to jarheadii)

                Mac OS 10.12 + Xcode8 + Additional tools for Xcode8。Only "High Latency DNS" works for me!

                • Re: Network Link conditioner doesn't work on macOS Sierra
                  eskimo Apple Staff Apple Staff (12,715 points)
                  eskimo Oct 26, 2016 3:33 AM (in response to jarheadii)

                  Folks, it would help if you were more precise about what you tried, what worked, and what didn’t.  I was hoping for something along the lines of I repeated the steps from your Oct 24 post and it worked as you described, but if I change step A to do X and change step B to Y then I see symptoms Z.

                  Share and Enjoy
                  —
                  Quinn “The Eskimo!”
                  Apple Developer Relations, Developer Technical Support, Core OS/Hardware
                  let myEmail = "eskimo" + "1" + "@apple.com"

                  • Re: Network Link conditioner doesn't work on macOS Sierra
                    jlstmac Level 1 Level 1 (0 points)
                    jlstmac Oct 26, 2016 7:43 PM (in response to jarheadii)

                    Only “DNS Delay” working.