A piece I wrote about my frustrations with having my vanity domain taken away from me by a change in government and why we shouldn't use ccTLDs for prime internet real estate.
"You'll need to download the code from Github, create a Twitter application, register a free account with AYLIEN, generate an app specific password for your Google account if you're using 2 Factor Authentication, make a copy of this spreadsheet in your Google Drive, and update the constants in the code. The whole process won't take more than 5 minutes!"
i.e.: Everyone seems to be focusing on whether it's a security risk to use fingerprints for authentication, but there's been very little discussion of the implications of combining a positive biometric auth with reliable location data.
It seems that the autoswitching has gotten good enough to trust that it's making better decisions than you are about whether the 5GHz network is superior.
I have not in this case, but I've found in the past that the appropriate channels tend to shift with other usage in the area, and leaving it on automatic allows it to compensate for that, while hardcoding a channel can work for a while and then stop being the best.
I will run some other tests when I get a chance. I've done #2, with no effect.
I don't think the Airport Expresses have anything to do with it - I've had some reports of other people being able to replicate my results without that.
This airport extreme is connected directly to outside (cable modem). There are several airport expresses extending the network (I have no idea how to tell if the client devices are connected directly to them, and I'm not sure it matters). There is a second airport extreme bridged to that one, which is running a dedicated 802.11g network to keep those devices off the same network as the faster devices.
Are you sure? I don't have an iMac, but I've tested with two MBPs. They will always use the 5GHz network if it's available. This may have something to do with how good your connection to the airport is - does your signal quality say Excellent?
I can't say that this configuration change will help for everybody - I'm just reporting what I'm seeing.