WiFi slow down when external monitor connected

[leez]

Did any of you experienced this ? My WiFi slows down or even stops working when external monitor is connected (via the big connector, don't remember it's name, DMI or something like that). Air Rev A, 1.6.

 

[SFStateStudent]

Sorry Leez, but mine is running just the same...

 

[justit]

How close is your router to the monitor. Try moving router somewhere else if possible. My ACER 24" is plastic, no change in MBA wifi. I do find G to be more stable than N.

 

[GoCubsGo]

Are you running in clamshell mode? My PowerBook would run in clamshell mode and have troubles with connecting now and then, something about blocking the antenna.

 

[NC MacGuy]

I don't have any problem with mine.

 

[slashjunior]

Are you closing the lid when you connect to the external monitor? I think it was on MacObserver on a review on the new 24" that closing the lid on the MacBooks will dramatically decrease Wi-Fi strength, so that could be your problem. Other than leaving the lid open I don't know what else to suggest unless you can use a USB Wi-Fi dongle instead of the Wi-Fi built in.

 

[sadiscord]

Thank you!

Just wanted to say thanks for letting this issue come up in a Google search!

I was actually searching for wifi interaction with studio monitors as I use my MBA in a recording studio, but it turns out it was my external monitor (screen) through the mini display port that was destroying my wifi!

I was able to duplicate this problem to a T, running Win 7 on Bootcamp on a 2012 MBA:

wifi connection speed at 130 mbps (full signal strength)
plug in external monitor
wifi speed slowly drops to 5.5 mbps over 1-2 minutes (still full signal strength)
unplug external monitor
wifi speed creeps back up to 130 mbps


I had a 720p youtube video loading while I did all this and could watch the progress grind to a halt, and start back up again as soon as I unplugged the monitor (I have a 20.0 mbps connection so normally 720p videos load quickly).

Weird ****! Any ideas as to the physics behind this?

 

[Boyd01]

I use my 2011 13" MBA with an old 23" Apple Cinema Display connected about 90% of the time. Never saw anything like this myself. But I might not notice, since all I use wifi for is the internet which is a slow 2.5mb DSL connection (all I can get out here in "the sticks" )

I leave the lid open on my MBA with the screen turned off. The fan kicks in too often for my taste if I run it in clamshell mode.