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A certificate upgrade for servers that are used to secure communications on three University of Michigan WiFi networks will require users to accept the new certificate as of May 18.

For more information about this upgrade, please see the article below, from The University Record.

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Last I heard (a while ago) the goal was to install a multivendor cell solution in the stadium. Did we give up on that?

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New WiFi Certificate to be Installed May 18

ITS Communications Systems and Data Centers will upgrade the certificate that authentication servers use to secure communications for devices connected to MWireless, MWireless-UMHS, and eduroam.

If you have a Windows, OS X, or Android device, a pop-up box may appear asking you to accept a new security certificate when you connect to WiFi on campus on or after May 18. Please accept the certificate to continue using MWireless and eduroam.

Apple iOS devices will not prompt you to accept a new certificate. Instead, iOS devices will continue to attempt to connect to the network unsuccessfully. To reconfigure iOS devices to connect to MWireless and eduroam:
-- Connect to MGuest or using a cellular data connection
-- Access the automated setup tool at
-- Run the setup tool to reconfigure the device to connect to MWireless and eduroam

The setup tool will not work if you need to access MWireless-UMHS on an iOS device (iPhone, iPod Touch, or iPad). To access MWireless-UMHS on an iOS device, remove MWireless-UMHS as follows:

1. Open Settings on your iPhone, iPod Touch or iPad
2. Tap Wi-Fi
3. Tap the info button next to the network name (e.g. MWireless)
4. Tap Forget This Network

Once you have removed the network from your device:
-- Select MWireless-UMHS from the list of available networks
-- Log in using your uniqname and UMICH password

You will now be connected to MWireless-UMHS with the new certificate.

More Resources
-- University Record story:
-- WiFi Service Page:
-- WiFi Setup Tool:

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WEAK COVERAGE? NO COVERAGE? - Consider WiFi Calling!
As of Monday, Verizon now supports WiFi calling on iPhones/iOS with the release of iOS 9.3. All four major carriers (AT&T, Sprint, T-Mobile and Verizon) offer WiFi calling. This helps cellular device users make calls in locations where carrier signals are weak or non-existent.

Interested in learning more about WiFi Calling? Be sure to take a look at this article in the University Record for more information.

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The lightly-licensed 3.5 GHz band is continuing to take shape, with the focus being on LTE deployments outside the context of traditional cellular carriers (i.e. enterprise LTE). Depending on the cost of the radios, this could provide a redundant RF path to campus IP networks.

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AT&T: Collaborating with Ericsson and Intel to Test 5G in 2016
AT&T has announced an initiative to start testing 5G network technology with outdoor tests and trials this summer. They'll begin this work in their Austin, Texas network labs in the second quarter of this year.

"We expect 5G to deliver speeds 10-100 times faster than today’s average 4G LTE connections. Customers will see speeds measured in gigabits per second, not megabits. For reference, at one gigabit per second, you can download a TV show in less than 3 seconds. Customers will also see much lower latency with 5G. Latency, for example, is how long it takes after you press play on a video app for the video to start streaming on your device. We expect 5G latency in the range of 1 to 5 milliseconds."

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Verizon is finally launching wi-fi calling on iOS beginning with 9.3 betas.

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LTE-U: FCC Approves Limited Testing for Qualcomm/Verizon
The Federal Communications Commission (FCC) has granted permission to Verizon and Qualcomm to test LTE-U (U for "unlicensed") in two Verizon facilities in Oklahoma and North Carolina.

There is a concern that LTE-U may affect Wi-Fi, as it uses the same unlicensed spectrum and frequencies typically used by Wi-Fi.

"The FCC is giving Qualcomm permission to test gear at two Verizon facilities, saying the move will give device makers an opportunity to show they won’t interfere with Wi-Fi and other unlicensed spectrum users."

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The iOS version of Architecture of Radio has been released for iOS devices on the iTunes App Store.

The recently-released application allows your device to visualize wireless frequencies surrounding the user, using non-realtime data provided by openCellID, JPL's Ephemeris tables and a WiFi database provided by

Here's a direct link to the iOS App Store:

A release for Android is expected in early 2016.

And while the application doesn't use realtime data, it's an interesting start of an approach to understand the wireless world surrounding us.

(Many thanks to +Michael Wojan for discovering this, and to +Shawn Sieg for sharing that it was released!)
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