Please can you confirm which Tyk Licence you have?
If you have our free PoC Cloud Licence, we recently sent out communications around restructuring our plans, and you will have been automatically moved to our New PoC Cloud account.
The new PoC tier still gives access to the full Tyk Cloud platform for an unlimited term, without charge. The only changes to the specification from your previous tier is the daily traffic quota which now has a hard limit of 1,000 requests per day and 10rps.
Is it possible you are hitting the rps limit? If so, you may need to look into upgrading your plan: https://tyk.io/pricing/cloud/#cloud.
If you have any follow up questions, please let us know, we’d be happy to help.