There's lots of documentation of folks running into this since Yosemite: find most of the reports on subreddits and forums for real-time applications, where users would be most likely to notice the kinds of subtle issues that this issue causes. The ping and WiFi throughput should stabilize.
You can test this yourself by running "sudo ifconfig awdl0 down". On the systems I've tested, disabling the awdl0 interface stops the OS from carrying out AWDL-related tasks, leaving the WiFi chip undisturbed. Not enough to disrupt the connection, but enough for us to notice the ping spikes and varying limits on bandwidth it causes. Similar to what happens when the OS scans for WiFi networks, when this interface is used for AWDL, it has to "steal" the WiFi antenna briefly. I believe this stops functioning when Bluetooth is turned off, because the features use both WiFi and Bluetooth in tandem. Screenshot below shows this.I've narrowed down this issue to the awdl0 virtual network interface, which is how macOS represents the ad-hoc WiFi connections it establishes for Continuity features like AirDrop. Here's the contents of the packet: LINK In that conversation, I also see TLSv1.2 packets that contain the same stuff, and in the info part, it says Client Key Exchange, Change Cipher Spec, Encrypted Handshake. Some VPNs have flat-out let unencrypted HTTP traffic through, and that's an obvious failure to encrypt, but I also see some VPNs encrypt only part of a packet? I'm not very knowledgeable, so I need help to see if this is just an unencrypted handshake, and if anyone outside my network can see it.īasically, when I open a certain TCP stream, I can see data going to a linkedin server (probably from a tracker on the website).
I've been taking a snapshot of traffic with an HTTP site open in Microsoft Edge. I've been testing a few commercial VPN providers to see if they're encrypting traffic or not.
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