NL-NETWORK-03 error while executing scripts from cloud?

We are encountering the NL-NETWORK-03 errors when we execute our scripts from Neotys Cloud account.
While the same script works fine through locally installed neoload.
Do we need to whitelist IPs in order to test our internal application?
If yes then how are we going to get all the Cloud IPs?
or there is any other way around to get up this working without whitelisting IPs

Thanks