Hi

What kind of issues do you have? Do you have all DoD certificates installed in case these are used for these pages?

Can you post a link to a publicly accessible page (i.e. no authentication or signing on required)?

Issues are: Unable to connect Firefox can’t establish a connection to the server at secure.doded.mil. The site could be temporarily unavailable or too busy. Try again in a few moments. If you are unable to load any pages, check your computer’s network connection. If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.

I have no DoD certificates installed that I am aware of, but when troubleshooting this as a Mac issue, the Mac representative (in the US) was able to access the site immediately without installing certificates.

The link is: https://secure.doded.mil/TTTRegistration

Works for me. Tools -> Page Info -> Security shows:

Website: secure.doded.mil
Owner: This website does not supply ownership information.
Verified by: U.S. Government
Technical Details
Connection Encrypted (TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, 256 bit keys, TLS 1.2)

Are you trying to access from Europe?

Is "Verified by: " significant? Mine says "not specified" rather than "U.S. Government" like yours does.

You could try a VPN to see whether connecting through a U.S. network makes a difference.

I've used this one in Chrome, but for Firefox, it would operate at the system level, they don't have a Firefox extension.

https://www.tunnelbear.com/

The VPN, listing my location as within the US solved the issue, though I think there should be some other solution if the site administrators insist that the site is accessible worldwide. Thank you for the suggestion!