" a hidden one "
Hidden SSID = drops and troubles. I guess that old advice won't die easily. Another trouble you can run into is when bad wifi clients are in the vicinity. Since 802.11n has only one non-overlapping channel, you as the designer will share how you dealt with that issue.
There's 2 issues for you to work now.
Last, there was a version of OS X that had WiFi troubles. It's not yours to solve this round. It wasn't your network in trouble at all. Here's a common thing I do that sometimes works on Apples. Forget ALL networks and then add the one I need.
Bob
Yesterday afternoon (all at around the same time) we started experiencing some wifi issues on the first floor of my coworking space. There was no problem with computers plugged directly into ethernet ports and it didn't seem to affect any of the pcs, only macs, which I know is odd but has happened before. Previously, all computers on the floor were connected to wifi, working with no issue.
For many of the macs, it showed that they were connected to the network with a strong connection, even when they ran diagnostics, but still they could not connect to any websites. When they tried to load a website, it just kept "thinking." But for a few others, it showed they had a very weak connection and when they tried to load websites they got an error messages saying they were NOT connected to the server.
We have two "networks" set up on the first floor here at the space, a hidden one and a public one. Both, I believe, are on the same networks really. We use the public one for our "dropin" people in the communal area and the private network for our regular members with office space. At first the problem with the macs seemed to be on the public network, so the first thing we had them do was have them try to switch to the private network. That seemed to work for some of them. For some it didn't solve the problem. We did a router reset.
After the reset, the majority of macs were able to use the public network again without a problem. Some still could only connect to the private. One still was unable connect to either. I took him with his mac to the second floor, where we have a whole different router/connection. He was able to connect to wifi no problem up there.
Today things are about the same. I still have the one guy working on the second floor because he can't connect at all down here. All pcs are fine. Macs are still divided, many that I would normally have connected to the public network are using the private network because they could not connect to the public network. It was doing that same thing where it was showing it was connected but they were unable to do any browsing. A few macs are doing fine on the public network, though some report it dropping off every once in awhile. Very confused as to what could be going on, but thinking it has to be something with the router.
Any thoughts? Sorry if this is confusing, did my best to describe what's happening.

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