Board Thread:Support Requests - Getting Technical/@comment-33029135-20191005140844/@comment-366087-20191005163846

Do you see a difference between this link1 and this link2?

FNG is right that the error code indicates a server-side connection error. Might be as simple as a phone line nodes between you and the server having too much traffic, to IRL power issues for a few server locations. If the links above don't work, try again in about 12 hours.

If still getting 503, then.