No Wifi symbol in my menu bar, network preferences or in Utilities. Can anyone help?

Go to System Preferences>Network. At the bottom there should be a box that you check: Show Wi-Fi Status in menu bar.

Ciao.

Are you saying that System Preferences -> Network does now show Wi-Fi as a device on in the left side of the Network panel?

Do you have multiple "Locations:"? Or is "Automatic" the only location available? Locations can be configured to have more or less network devices available (I have one with zero network interfaces I use to make sure my Mac is off-line).

If you really do not have any Wi-Fi network interfaces, you can add them back in using the [+] button at the bottom of the column

Feel free to make your own screen shots if you wish us to see what you are seeing. Command-Shift-4, then drag the cross-hairs over the area to select, and then Click. Screen Shot should be on your desktop. You can then drag and drop the screen shot file into a forum reply window. Command-Shift-4-Space to easily select an entire window panel, as I did above.

You can use Preview -> Tools -> Annotate to draw boxes, circles, arrows and put text descriptions into your screen shots before posting.

With the option/alt key held down, go to the  menu and select the first choice, which is either System Information or System Profiler. Does the Wi-Fi entry show installed hardware?

Vdubbman wrote:

I contacted Apple and it appears I don't have Wifi. My Mac came with this as optional.

That is absurd. You must have purchased it from a third party because every MBP ever produced has had Wi-Fi installed when new. Should this actually be an Apple employee telling you this, I would immediately escalate this up the management chain.

Ciao.

The 2008 Mac Pro is the oldest model to support Yosemite, and its technical specs do say

Optional 802.11n AirPort Extreme wireless networking2

The 2009 says

Optional AirPort Extreme 802.11n Wi-Fi wireless networking card;2 IEEE 802.11a/b/g compatible

The 2010 was the first Mac Pro with built-in Wi-Fi.

So Vdubbman, if you have a 2008 or 2009 Mac Pro, then yes, it is possible your Wi-Fi was an option that was not purchased.

<Apple - Support - Technical Specifications>

<Upgrade to OS X El Capitan - Apple Support> these are the same system requirements as Yosemite, Mavericks, Mountain Lion.

I was thinking Macbook Pro, not Mac Pro. There is a difference. Thanks for the correction.

Ciao.