We have MX84's all over our company and they're all running MX15.15 currently.
At one of our sites last night we had a power event. When the MX84 pair came back up the inside interface that goes back to our core switch stack wouldn't come up. This is interface 3 on all of our MX84s and is the only inside (non-WAN) port in use on these devices.
I tried power cycling the devices as well as disable/enable on the ports and they still wouldn't come up.
Hoping the problem wasn't the core switch I enabled interface 5 on the MX84s and the cable plugged into the same core switch ports used for interface 3 was moved and sure enough it worked!
Has anyone else experienced similar issues with interface 3 (or any other "inside" interface) like this? If so - what was your resolution?
I have a case started with Support but wanted to reach out to the broader community as well.