Screen sharing not working on MacBook Pro M2

Update: confirming that the problem still happens on MacOS 15.1 (though, when I select "ask to share screen" for someone in an iMessage thread, it now launches a FaceTime Audio call, like some other posters have mentioned. Previously for me at least in macOS 15.0, it did nothing at all. Worked correctly in macOS 14 and earlier.)

Using the Screen Sharing app still functions correctly -- just not able to initiate it from Messages. (In case some aren't clear about what we're talking about, see screenshot below.)

Same issue here. I would frequently initiate a screenshare request in Messages, which popped up the "allow" window on the other macbook, which worked great & reliably in MacOS 12, 13, 14.

Now in Sequoia 15.0 it's broken - no request to allow the screenshare pops up, when initiated from Messages.

If I request it from within the Screen Sharing app, though, it works fine. Just annoying that I have to go through the other step (luckily the laptops I connect with are in the list of previous screenshare recipients... not sure how it would work for a new person, which is why Messages was so convenient.)

I'll try when both laptops are upgraded to MacOS 15.1 and report back.

I am able to share screens between an M1 MBP on Sequoia and a 2013 MBP on Big Sur 11.7.10, using Messages. Screen sharing is enabled on both. Are both your computers connected to the internet? Are you able to send any kind of Message between the two computers? Are they both signed into an Apple ID? Just trying to think of things that might have changed since you updated to Sequoia.

Do both computers show up in Find My? My M1 Mac wasn't showing up in Find My on other devices after the update, even though it was apparently active on the M1, according to Settings. Once I restarted it a couple of times, it did show up - though Messages seemed to be working right away. Again, grasping at straws, here.

I have been having the same issue lately. I frequently share my screen with a friend who is using a Mac Studio. I send the invite and nothing happens. He sends a request and I get a Facetime call, on my iPhone, not my Mac. Ironically, if he attempts to share his screen, the same steps work.

The Apple advisor I spoke to told me it will be resolved in a future release. Still waiting!

<< FEATURE/FUNCTION IS NOT IMPLEMENTED CORRECTLY ... WE'LL JUST HAVE TO WAIT.>>

Apple does not know there may be a problem unless/until LOTS of folks let them know about it. Posting here among other Users is NOT adequate to let them know.

The simple way is the use product feedback page to let them know there is a bug:

Product Feedback - Apple

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Same issues here.

If I send a remote control request (Messages, Conversation, Ask to Share Screen) from my computer - the Screen share app is supposed to appear on the recipient Mac. This request screen allows the sender to ask to take control the remote Mac.

Unfortunately, this is now normal behavior only on certain Macs with MacOS 15.

On some Macs, the request fails to open the Screen Sharing app. Instead, FaceTime Audio opens and remote control does not work. Toggling the allow control button makes no difference.

I have been able to replicate this issue on two additional Macs. There has to be a logical explanation, unfortunately, I haven’t found it yet.

Have you enabled screen sharing, and specified what users can accept sharing on the Source Mac?

Remember that the Users specified, even if the same name, are local and unique to each Mac.

We can not see your computer, and have no idea what you know other than what you post in words on this discussion. Precise terminology is not optional.

You have miscommunicated in a major way by calling the features you want to discuss, by the name of a different well-known feature entirely. 'MacOS Screen Sharing' is implemented in Settings/Preferences

Sharing > screen sharing ...

... and uses a variant of VNC, and is network-media independent, and can also be used in some cases on a PC with VNC software added on the PC.

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I now believe the feature you have been trying (and failing) to discuss is called AIRPLAY, and Airplay screen sharing is a minor feature inside Airplay. It is implemented ONLY using Bluetooth and Wi-Fi for Macs and iDevices within Bluetooth range of each other (about 30 feet maximum.)

This may be helpful:

Share your screen using Messages on Mac - Apple Support

I used to use the feature often in the past on older macOS versions - Catalina and prior.

It worked great then, and apparently Apple still supports the feature.

Screen Sharing is NOT Messages.

if what you want is to see the same Messages on multiple devices, Readers report that the feature is very cranky to get connected, and may require changing the settings on your phone AND your computer AND Restarting each involved device more than once.