Hi @huzefa.yousuf I just CCed you on the support case.
In any case, I’ll copy the response here since it might be helpful to others facing this:
There seems to be a DNS error. There’s a special file,
https://cdn.eu.auth0.com/client/<CLIENT_ID>.js, that Lock loads on startup to get information about the application (such as title, enabled connections, and so on). This file resides on our CDN (https://cdn.auth0.com, https://cdn.eu.auth0.com or https://cdn.au.auth0.com depending on the tenant’s region) but, on some requests, it seems as if the user’s browser is not getting the proper IP for the subdomain and is instead going directly to our main server at
auth0.com, causing this error message.
I saw, in our internal logs, that all these failed requests seem to come from a single IP (188.8.131.52) IP address. I suggested resetting the DNS cache to see if that improves things.Also have the user try the same flow from a different computer.