To keep their systems secure, some companies might use security measures, such as firewalls, to protect against vulnerabilities. These security measures can prevent uploads to the Servers. As a solution, you must whitelist the IP address range for NavVis Cloud. This way, your uploads work reliably even when such security measures are in place.
As NavVis Cloud uses AWS servers to host all NavVis IVION data, it is necessary to whitelist all AWS subnets for ELB, EC2, and S3 storages. This is because the IP addresses we use for our instances are dynamic. This link should help achieve this.
FAQ
Why does downloading a large bundle from NavVis IVION fail with a "Failed - Forbidden" error in Chrome?
A "Failed - Forbidden" error on a large download — such as a bundle over 200 GB — is usually caused by a time-limited download URL expiring during a long transfer, or a security firewall blocking the connection. Whitelist all AWS subnets for ELB, EC2, and S3 as described above. Also make sure your computer stays awake throughout the download — see How to prevent upload/download issues with NavVis IVION when the device goes into sleep or is locked.