Help Needed: Wifi does not work when MBP lid is closed

[supern0va]

I have a mid-09 13" MBP. I just bought a display (dell U2311H), wireless apple kb and magic trackpad, with the intention to use just the external display and kb/trackpad, and stow my MBP away to save some space.

Everything works fine when my MBP's lid is open. But once it is closed (or nearly closed), Wi Fi disconnects.

Does anyone know how to fix this? I don't think it has anything to do with my wireless router, but more to do with some MBP setting. Thks!

 

[Stingray454]

Isn't the problem just that the computer goes to sleep when you close the lid? There are programs that let you override this behaviour so that you can close the lid without the computer going to sleep. Try something like InsomniaX: http://mac.softpedia.com/get/System-Utilities/InsomniaX.shtml

 

[supern0va]

Isn't the problem just that the computer goes to sleep when you close the lid? There are programs that let you override this behaviour so that you can close the lid without the computer going to sleep. Try something like InsomniaX: http://mac.softpedia.com/get/System-Utilities/InsomniaX.shtml

I can wake the computer up thru this procedure:
http://support.apple.com/kb/ht3131

but the wi fi wont work.

 

[Stingray454]

It seems the problem might be worse wifi reception with the lid closed. Check out this thread: https://forums.macrumors.com/threads/841386/

It seems to be a common issue, the MBP get a lot worse reception when running in clamshell mode. I'd suggest either running with a cable, or moving your router closer to your computer (or the other way around) if possible.

 

[supern0va]

It seems the problem might be worse wifi reception with the lid closed. Check out this thread: https://forums.macrumors.com/threads/841386/

It seems to be a common issue, the MBP get a lot worse reception when running in clamshell mode. I'd suggest either running with a cable, or moving your router closer to your computer (or the other way around) if possible.

it is considered a manufacturing defect? if I bring it in to the store will applecare cover this?

 

[jjp14]

Try changing the channel on your router. I had this same problem, and changing the channel fixed the issue.

 

[supern0va]

Try changing the channel on your router. I had this same problem, and changing the channel fixed the issue.

Sorry, how do I do that? I can try it later.