"server is throttling downloads" and own api problem in General Posted October 22, 2020 Once you change the API key in the advanced settings, you will need to reauthorize the drive (or detach it and reattach it). It will not immediately switch to the new key until it recreates the API authentication. Did you do that? Also, how many upload and download threads are you using? 11 download threads per second is likely just hitting Google's API limit, and it is likely why you're getting throttled--especially since it looks like you're also allowing around 10 upload threads at the same time. In my experience, any more than 10-15 threads, accounting for both directions, will lead to exponential backoff and API throttling on Google's part. Try something like 8-10 download threads and 3-5 upload threads and see if it reduces the throttling or makes it disappear.