iMessage and Facetime not working on my Mac
I have a 2017 Macbook pro. Since about December (around when I got the update) I haven't been able to send iMessages (I use facetime way less, and noticed the problem with it only recently). They would never send and that little red ! would pop up next to the message.
Soon after this, I was signed out of iMessage and haven't been able to sign back in. I reset my password and everything--twice. It takes forever to load after I log in, and then inevitably says "An unknown error occurred" or the app crashes. Sometimes I am taken to the messages screen, and the same problem as before happens with the "!".
I have contacted customer support and talked with them for three days, and they had me try a variety of different things. I ended up re-installing the update Big Sur, resetting the NVRAM, freeing up a lot of storage, among other solutions that are google-able. Because of the pandemic, the Apple store isn't taking any appointments. I just want my mac back!
MacBook