2009 Mac Pro Wifi keeps shutting down
Hi all,
I have an early-2009 Mac Pro, running OSX 10.9.5. Lately, the Wifi only works for about 5-10 minutes at a time. It'll look like it's working -- i.e., the WiFi icon at the top of the screen has full black bars -- but the Dropbox icon will be greyed out due to not being connected with the computer any more, nor do I have access to my printer or the internet. To get it going again, I click on the Wifi icon, turn WiFi off for about 10 seconds, then turn it back on. Then everything works again for 5 or 10 minutes. It used to be that I'd have to reset the Wifi only once every day or two, but the problem is getting progressively worse.
BTW, it has to be just this computer, because all other devices hooked up to my Wifi work wonderfully.
I've tried resetting the PRAM, but that doesn't seem to solve anything. Any other suggestions? Not sure if this is a software issue or a hardware issue. Just not sure where to start my troubleshooting.
Thank you!
Kevin