The configuration may be expired (commonly happens within a few days) or the server is overloaded.
Official Telenor settings are typically delivered via SMS or manual APN configuration, not through custom .tnl files. How to Use .tnl Files for Telenor (General Guide) Download Telenor File tnl
If you are looking for free internet browsing, using official methods is recommended: Use the My Telenor App to manage settings. The configuration may be expired (commonly happens within