Matt StaufferJul 21, 2024

I finally retired my 7-year-old iMac and have started using my 4-year-old M1 MacBook Pro as my primary machine.

I have a nice display, so I wanted to use the MacBook in clamshell, but it completely ruins the WiFi reception.

Any solutions? Do I just have to keep the MBP open?

Show threadSteve Jul 21, 2024
@mattstauffer That's wild, I've never come across that before. Out of interest, have you tested it with other displays to see if it still happens?
(Two reasons for asking: I always use clamshell mode both at home and at work, and I own/run an IT company that does a lot of Mac repairs, so very curious…).
Show threadMatt Stauffer

@steve huh! I’ve googled and found a lot of others with the same issue so don’t think it’s isolated to me. But now curious. Do you do clamshell flat or vertical in a dock?

And yah, has happened with two different displays.

Jul 21, 2024 at 5:43pmWeb
Show threadSteve Jul 21, 2024
@mattstauffer That's really curious. We've got a lot of clients where we're recommend this solution - clamshell and USB-C large screen - not had any reports at all of issues. I use it flat on my desk at home and vertical in a stand at the office. How odd!
Show threadMatt StaufferJul 21, 2024
@steve whoa. i tested. 10-20Mbps down if it's flat, 60-70Mbps down if it's vertical. HUGE difference, reproducible over and over. Thank you for asking!
Show threadSteve Jul 21, 2024
@mattstauffer Ah, awesome - a kinda workaround for now at least. I'm going to do some testing - I'm sure we've got at least one M1 Pro kicking about in the workshop…
Show threadSteve Jul 21, 2024
@mattstauffer The other reports you found, did you notice if it was specific to the M1? The chassis hardware from M1 to M2 was hugely improved (in my opinion), and I've had both, though more recently on M2/3.
Show threadMatt StaufferJul 21, 2024
@steve Yes--they were all M1. Sounds like I just need to hold it vertical until I upgrade to M2/M3!