Check if there is a network issue
If you have access to ECPDS, you can get a trace-route from our servers to your server. These are the steps to generate this network information.
1) Login to ECPDS
2) Go to your destination
3) Go to the Transfer Host that is being in use
4) Click on 'Network Info' on the left-hand sidebar.
This can take a very long time to load (a couple of minutes).
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5. If you think the issue is with ECMWF, please raise the issue via the Support portal.
Other options
If there is no network issue on your side, please contact ECMWF via the Support portal. The Data Support Team will be able to assess whether a decline in the data rates has taken place. They also might be able to suggest an appropriate solution for your case, which could be for example installing parallel streams or compression of your data.
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