If your infrastructure implements IP whitelisting, make sure that you add these IPs to the allowed origins, so that requests from Quality Clouds are not blocked:
All servers located in: EU (Ireland)
18.104.22.168 → 22.214.171.124 126.96.36.199 → 188.8.131.52 184.108.40.206
Important Note - 19 October 2022.
Due to changes in our infrastructure, the IPs in our EU cluster have changed. Please replace the old IPs (grayed out) with the current ones in your whitelist.