Local Network / Firewall Issues

Secure WebDAV (also referred to as WebDAVS or WebDAV over SSL) is occasionally blocked by firewalls. Firewall changes can introduce new blocks that didn't previously exist.

Files.com does not support or allow insecure plain WebDAV.

Find a set of settings that works for a particular network or firewall. The right settings vary across your user base depending on which corporate or network firewalls each user sits behind.

Manually Whitelisted IP Addresses

If you have manually whitelisted IP addresses anywhere, verify that all of the appropriate IPs are whitelisted, not just some of them.

If your site uses a custom domain, you have two dedicated IPs that need to be whitelisted in your firewall. You can find your dedicated IPs on the Firewall page of your site. With a custom domain, you also need to connect to that domain, not to [your_subdomain].files.com.

If you do not have a custom domain, whitelist all of our main IPs on this list, not just some of them. There are quite a lot of IPs on that list (over 80 at last count), and you need to whitelist all of them or you will experience failures. If whitelisting that many IP addresses is a problem for you, the solution is to move to a custom domain. A custom domain gives you a pair of IP addresses you can whitelist.

Consider an IP Whitelist

If you have not whitelisted IP addresses, your firewall administrator may require this for WebDAV traffic. Submit a request to your network or firewall administrator to allow WebDAV port 443 traffic to all of the IPs on this list.