There was a major outage at Discord. The services were unavailable for an hour. They had identified the problem quickly and it was back online soon.
This did not affected everyone only if you saw this response when trying to send a message:
Sending messages to this channel has been temporarily disabled. Try again in a bit.
Here are the official announcements from the status page:
Investigating - We're aware of problems preventing users from connecting, and causing some guilds to appear offline. We're currently investigating.
Nov 17, 14:14 PST (22:14 UTC)
Identified - We're currently investigating a major outage which is effecting the vast majority of users. We hope to have an update within the next 5 minutes.
Nov 17, 14:31 PST (22:31 UTC)
Monitoring - At this time we believe the majority of service has recovered. We're still investigating the root cause of these issues, but we believe they where caused by networking issues in our provider.
Nov 17, 15:15 PST (23:15 UTC)
Update - Our team is still working with Google to identify the root cause of the networking issues. We're actively monitoring the platform to ensure any further networking issues are caught and resolved before they have a cascading effect on the system.
Nov 17, 19:35 PST (03:35 UTC)