1. Make sure that the browser is up to date 2. Clear the browsing history or use a different browser 3. Temporary disable plugins/extensions, firewall, and VPN 4. Check if your firewall is configured for Box apps 5. Try to connect to a different network 6. Reach out to the owner of the link and request for a new shared link and make sure the link is set to "people with the link"
I trust that the above steps will do the trick. Thank you for posting!