This is NOT a duplicate of MC-34749 as Norton was totally disabled, rebooted and the issued remained. The Norton logs showed no update to their software before this issue manifested. Please do not close this as a duplicate of MC-34749 since you do not explain how firewall software is causing this error.
Comments 5
MC-34749 has to do with a virus program. Since I have no virus program running, my problem doesn't pertain to MC-34749.
So Mojang just dumps this error message into a generic cause even though the cause isn't present. And then directs people to the Community to solve Mojang's problems.
Interesting...
Your report is infact a duplicate of MC-34749. You will need to go to community support (linked below) and ask for help there.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki