When I browse to our TFS via Source Control Explorer, an error occurs:
Request was blocked due to exceeding usage of resource 'Concurrency' in namespace 'VSID'. For more information on why your request was blocked, see the topic "Rate limits" on the Microsoft Web site
I think what you encountered is related to a sudden event on our side. Users visiting Azure DevOps will see a 429 throttled requests like Request was blocked due to exceeding usage of resource ... And as I know this issue has been resolved, please check it.
More details about this event you can check this link. The issue was fully mitigated from 7/4/2020. Our engineers will be investigating this further to learn from and reduce the risk of potential recurrences. We apologize for the impact this had on our customers.
I had the same error in the logs for one of our apps that day but now it is working again. Thanks.
