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Wifi slower after 26.2 update

1BadManVan

1BadManVan

macrumors 68040
Original poster
Anyone else notice their wifi speeds went down after this update? It's not detrimental or anything, still works and perfectly usable but it's down by 250-300mbps when running speed tests now. Normally I get 800/215. It's now 550/180 after the update, ive rebooted the Mac, reset wifi etc. Same results

All my other devices are still getting the proper speeds, its just this MacBook
 
Ive not noticed speeds being low as much as Safari just being extremely slow in itself. Just typing now its lagging. And scrolling sometimes seems very slow and laggy as well.
 
TumbleDryer said:
Ive not noticed speeds being low as much as Safari just being extremely slow in itself. Just typing now its lagging. And scrolling sometimes seems very slow and laggy as well.
Click to expand...
I luckily dont have those issues but still disappointed something with this update hurt the download and upload speeds
 
I noticed the same thing with my MacMini(M1) after the update to 26.2. My wifi speed dropped from 850/30 to 425/25. Other devices, iPad & iPhone were not affected. It looks like the problem is with the AirPlay/AirDrop AWDL protocol on the Mac interfering with WiFi. As a workaround if you disable AWDL the Wifi speeds return to normal.

To disable AWDL on a Mac, open Terminal and enter the command sudo ifconfig awdl0 down, then hit return and authenticate with your admin password. This will turn off the AWDL interface, which may help improve Wi-Fi performance, but it's only a temporary workaround. AWDL will activate automatically if any of the services such as AirPlay are needed, and when the Mac comes out of sleep mode or is restarted.

This is an old bug with AWDL as this issue with WiFi goes back a few years and seemed to have been fixed. It looks like the Tahoe 26.2 upgrade has brought it back.
 
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robNY -

Thanks for the info in reply 4 above.
I'm wondering if one could create an AppleScript to do this, perhaps something that could run on login, etc. ...?
 
Just wanted to revive this thread as I did some more digging again tonight as this was still bugging me why it was so much slower than all my other devices.

Came across a random reddit post, disable bluetooth. Boom, wifi went from 650 to 940 instantly! Apparently this is a common issue on m1/m2 Macs from what I've read which is very annoying but that is 100% causing the problem
 
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