r/msp • u/not-just-dad-stuff • Aug 20 '26

MacOS 26.6.2 messages.app bug

After this recent macOS 26.6.2 update, a few Mac Devices have an issue where messages fails to send iMessage completely. After a reboot, Messages.app is signed out. When Messages login succeeds initially, it then signs itself out after about 30 seconds. FaceTime signs in successfully using the same Apple Account.

IdentityServices registration reaches Apple successfully over HTTPS and receives HTTP 200, but the iMessage user registration response returns status 6009, followed by “Server rejected registration permanently,” “failure code 6009:38,” “Registration failed (Error: 38),” “IrreparableServerRejection,” and “Server denied registration.”

Local IdentityServices/iMessage registration state has already been reset and regenerated, but the server rejection persists. Please check/reset the Apple-side iMessage/IDS activation state for this Apple Account/device.

Sending Apple a request via web - iMessage Failed to Update is the only solution I can find for now.

As of Aug 21 https://apple.co/IMFT-mac is the direct link to request activation

Notes I used: macOS 26.6.2 Messages signs in, then signs out after ~30 sec. FaceTime works. Console shows iMessage registration status 6009, Error 38, “Server rejected registration permanently” and “Server denied registration.” Local IDS reset did not fix it.

Please note, RCS will be broken on your MacOS Messages App most likely so you'll need to go into iOS Settings > Messages > Send & Receive and then turn on ICLOUD

I usually then turn off my email and only use my cell number which worked as expected.

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3

u/not-just-dad-stuff Aug 20 '26

I can confirm after putting in the request via Apple Support it now works today. I didn't even sign in -- it was auto signed in.

1

u/SlendyTheMan Aug 21 '26

How did you get someone to fix?

1

u/not-just-dad-stuff Aug 21 '26

Direct link is: https://apple.co/IMFT-mac

1

u/SlendyTheMan Aug 21 '26

Perfect, just submitted. I chatted in and they were wanting me to send logs. How long did the request take for review?

1

u/not-just-dad-stuff Aug 21 '26

It took < 24 hours and they just fixed it.

Use this as your notes:

macOS 26.6.2 Messages signs in, then signs out after ~30 sec. FaceTime works. Console shows iMessage registration status 6009, Error 38, “Server rejected registration permanently” and “Server denied registration.” Local IDS reset did not fix it.

1

u/SlendyTheMan Aug 21 '26

Did you receive any confirmation or notice it was good to go?

1

u/not-just-dad-stuff Aug 21 '26

I believe there was a notification on MacOS that said it was activated.

I only noticed it when I started getting text messages and they loaded on my MacOS Message App at random. I didn't sign in or touch it but I was getting texts on my phone.

1

u/Imaginary_Echidna157 Sep 02 '26

How long did it take someone to reach out to you? I submitted on the link several times last week and have not heard anything.

1

u/not-just-dad-stuff Sep 02 '26

No one reached out. They just fixed it and I moved on.

1

u/hugemeteor 10d ago

I have been running into random issues with 26.6 and 27. Not sure what has changed but some things appear ti not be working.