MacBook Air :: Restart Wifi Router Every Time Turn?

Feb 21, 2012

Every time I switch on my Macbook Air, or wake it up from sleep, I lose my wifi connection. If I restart my wifi router, the signal comes back, but once my Macbook Air goes to sleep, I always need to erstart my wifi router again. This is the process I go through several times each day: 

(Wifi router is on.)

1. Turn on Macbook Air. It recognises my wifi network but has no internet connection.

2. Restart my wifi router.

3. After a few minutes, I get an internet connection on my Macbook Air. 

Previous laptops and desktops have not had this problem. Do I need to change any settings in my Macbook Air? I'd be grateful for any help. 

I have a 2010 Macbook Air (bought second hand) running OS 10.6.8. I am using a D-link wifi router.  

Info:
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