no wi-fi connection

Bill,

Try changing the wireless channel on the router and see if that helps. Sometimes a neighbor installs a new or more powerful router on the same channel you're using and it screws things up. It'll be somewhere in the wireless settings on the router.

I think it's a possibility, and it's very easy to try. Obviously, do it when you're comfortable. Wifi problems are a bear to troubleshoot sometimes. I also have a mid-2010 and in my case it turned out to be an internal cable that had failed. That seems unlikely on two machines at the same time though. The point is it took quite awhile to figure that out. The other thing you can try is to go to System Preferences / Network. Choose your wifi network, then click Advanced and the wifi tab. Drag your network to the top of the list and use the - key to get rid of any unneeded networks you may have in there. Sometimes the list gets long over time and that screws things up as well.

Bill,

Glad that did it for you. Stop back in a day or two and let me know if it's still working, ok?

I've had the same problem, coincidentally since I got an iphone. D-link has changed my channel a couple of times, and we've also created a new network for me; in addition, I've removed all other networks so only this new netwok is now visible on my MacBook Pro.

My Apple TV, ipod touch and the iphone are all fine. I can be working away on the Mac and for some reason the wifi seems to turn off. I've found if I shut down and restart, the connection is re-established most of the time. I phoned D-Link because I have a DIR-601 router, and after a few attempts to try to get this business to stop happening, they've told me it's the mac's problem and not the router (which makes sense).

Does anyone know how I can fix it once and for all? I'm running Mavericks 10.9.2 on a 2010 MacBook Pro, my ipod Touch is a couple of years old - running system 6, I have Apple TV software version 6.1, and an iphone 5S (system 7).

Have you tried this, which I suggested to Bill earlier?

The other thing you can try is to go to System Preferences / Network. Choose your wifi network, then click Advanced and the wifi tab. Drag your network to the top of the list and use the - key to get rid of any unneeded networks you may have in there. Sometimes the list gets long over time and that screws things up as well.

Bill,

Really glad it worked for you. Wifi is sometimes a nightmare to troubleshoot, glad we got this one pretty quickly.

I'm afraid it hasn't resolved my issue. It doesn't happen every day but often enough. I've followed all the steps suggested, including deleting any reference to other networks, but I'm still having my wifi disappear.

Any other ideas?? 😕

Benzmum,

When you lose the connection, does the wifi icon still show as connected? If so, turn it off then see if you can turn it back on. Let me know what that does.

Tried that first thing, BobRz, but didn't work. My icon's grey, and when I go to Network prefs it says wifi's on but it can't find my network. If I shut down and start up again, the wifi's restored.

As I said before, this all began (coincidentally?) when I brought my iphone 5s home. All my devices (including iphone) work fine, just not my macbook. I mean. ***? (not to put too fine a point on it...) 😢

Message was edited by: Benzmum

Let me tell you how mine behaved. The icon showed that I had a connection once I'd lost it. If I clicked on it it would let me shut off wifi but wouldn't turn back on until I rebooted. In my case it ended up being a bad cable from the Airport card to the motherboard. I've got a mid-2010 15". Changing the cable fixed the problem. Another member pointed this out, so I can't claim I discovered it. The unique symptom was the way the icon behaved. Again, it showed connected after the connection dropped but if I turn off wifi I couldn't turn it on again. There's also the less aggravating approach that worked very well for me until I got this cable issue resolved:

http://www.amazon.com/gp/product/B003MTTJOY/ref=oh_details_o04_s00_i00?ie=UTF8&p sc=1