Workplace We Weren't able to setup this account on your phone. Company Portal Issue

We have the hybrid SCCM Intune configuration that has been working for the last 11 months no problem. Our Company Portal App is signed correctly.
We have noticed today that new or existing users cannot enrol their devices into Workplace with the "We Weren't able to setup this account on your phone" error, which is normally linked to a Company Portal issue.
The Company Portal that is installed on currently enrolled phones has stopped working as well. When you try and open the app on the phone is says "Problem with app" There's a problem with Company Portal. First, try to buy the app... Strange as we obviously already have it, if you click buy it takes you to the store and displays WP SSP WAVE H as an application published by Internal Beta Account. Is this the app in its basic form that I originally signed?
It seems like I need to re deploy the Company Portal App again but wanted to see if anyone else has had this problem before.
goatVR46Asked:
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goatVR46Author Commented:
Okay so it was simple enough in the end. The Symantec Certificate had expired...
After I got a new Certificate from Symantec and added it to the server it still didn't work.
What I had to do in the end was delete the Intune Connector Role from the SCCM server and then clear the information entered into the Windows Phone section in Administration, Cloud Services, Microsoft Intune Subscriptions and apply that.
Then re add the Intune Connector Role to the server and set up the Windows Phone section again with the new certificate. Then resign the company portal app and set it back up to be a required application upon enrolment.
Phew. Thank you Michael from Microsoft!

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