As a part of a DDoS mitigation process, or as a result of some strict firewall rules, our servers can be blocked from accessing the origin web server. In this case, you just need to whitelist our IP blocks in your firewall rules. Also, it is worth mentioning that some security plugins (for the CMS you use – if you use any) for DDoS mitigation may act the same as a firewall that is blocking us.
Below we show the typical traffic pattern that typically results in a 502 Bad Gateway error.
If the problem persists, please feel free to start a live chat or submit a ticket with support.