# Root domain change doesn't work **URL:** \ **Category:** Technical Support\ **Created:** [September 25, 2024, 9:21pm UTC](https://pdfjs.community/t/root-domain-change-doesnt-work/3455 "2024-09-25T21:21:24Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![dieter](https://avatars.discourse-cdn.com/v4/letter/d/977dab/32.png) [@dieter](https://pdfjs.community/u/dieter)\ **Post date:** [September 25, 2024, 9:21pm UTC](https://pdfjs.community/t/root-domain-change-doesnt-work/3455/1 "2024-09-25T21:21:24Z")
**Which product are you using?** PDF.js Express Viewer **PDF.js Express Version** **Detailed description of issue** We switched from one to another domain. So I’ve updated the settings for our PDF Express viewer license too. Everything was working smoothly on the previous domain. Now we keep on getting the error "A valid license key is required … " on the new domain. I know domain name changes can take up to 10 minutes to be in effect, but we have updated it 2 hours ago. Is this normal behaviour and do we just have to wait? Can someone please advise? **Expected behaviour** A working viewer like on our old domain name. **Does your issue happen with every document, or just one?** Every ---
**Author:** ![tgordon](https://avatars.discourse-cdn.com/v4/letter/t/aca169/32.png) [@tgordon](https://pdfjs.community/u/tgordon)\ **Post date:** [September 25, 2024, 10:15pm UTC](https://pdfjs.community/t/root-domain-change-doesnt-work/3455/3 "2024-09-25T22:15:00Z")
Hello dieter, Thank you for reaching out, we had an outage regarding licensing just a few hours ago, can you try again? Additionally if you could provide the domains there might be a different in the FQDN that might be causing this. Best regards. Tyler ---
**Author:** ![dieter](https://avatars.discourse-cdn.com/v4/letter/d/977dab/32.png) [@dieter](https://pdfjs.community/u/dieter)\ **Post date:** [September 26, 2024, 10:25am UTC](https://pdfjs.community/t/root-domain-change-doesnt-work/3455/4 "2024-09-26T10:25:09Z")
It was probably due to the outage. I created a new license and everything is working fine now. Thanks