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All replies
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Helpful answers
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Jul 19, 2015 3:40 PM in response to dcb16by Bob Timmons,I will leave it someone else to figure out what the problem was.
McAfee.....which you do not need on a Mac.....was blocking normal network communications between two Mac devices. Why, I cannot say. McAfee Support might have an answer for you on that one.
Will having wifi signals from both my router (2.4 and 5) and Extreme cause problems?
Normally, this is not a problem.
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Jul 19, 2015 3:49 PM in response to dcb16by Tesserax,At the same time as I tried to reconnect to my broadband the diagnostic checker asked me to turn off my McAfee security.
If you are using McAfee Internet Security on your Mac it includes a software firewall. Like Bob has commented, that firewall is, most likely, why the AirPort Utility was not able to communicate with your AirPort base stations.
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Jul 20, 2015 1:54 AM in response to Tesseraxby dcb16,The McAfee was supplied by BT as part of their Broadband service so I just loaded it up.
Why don't I need it on my Mac? If not I will just switch it off.
Thanks again Bob and Tesserax for your help.
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Jul 20, 2015 4:41 AM in response to dcb16by Bob Timmons,If you needed something like McAfee, then Apple would build it into the Apple operating system. On a Mac, anti-virus applications do more harm than good. McAfee.....or another anti-virus application like it.....would be needed if you own a PC.