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Hi,

I can’t open the admin panel of my own website in Firefox. When I go to the admin login page, Firefox shows a message saying the site is restricted and tells me to check my DNS settings, so I can’t log in. The site itself is online.

Website: Take Me Elsewhere https://takeme-elsewhere.co.uk/ Admin page: [your admin login URL, e.g. https://takeme-elsewhere.co.uk/admin]

The exact error Firefox shows: “[copy the full error message here]”

My setup:

Firefox version: [Menu > Help > About Firefox] Operating system: [e.g. Windows 11 / macOS] Internet connection: [home Wi-Fi / mobile hotspot / office network, plus ISP name] Recent changes: I recently tried moving the domain’s nameservers from Hostinger to Cloudflare and then switched them back.

What happens:

The public homepage [does / does not] load in Firefox. The admin login page shows the restricted/DNS error every time. The same admin page [works / doesn’t work] in Chrome and Edge on the same computer and network. [It works / doesn’t work] on my phone over mobile data.

What I’ve tried so far:

Reloading the page and restarting Firefox Clearing the cache and cookies for this site Opening the page in a private window: [result] [Anything else you tried]

My questions:

What does this “restricted, check your DNS” message mean in Firefox, and what triggers it? Could Firefox’s DNS over HTTPS setting be causing it, especially after my recent nameserver changes? Could an extension, a security setting or my network be blocking the admin page? What settings should I check or reset to log in to my admin panel in Firefox again?

Thanks for your help!

These usually fix it, so try them before posting:

Turn off DNS over HTTPS. In Firefox, go to Settings > Privacy & Security > DNS over HTTPS and set it to Off, then restart Firefox. This is the most common cause after a nameserver change, because Firefox’s DNS provider may still have the old Cloudflare records cached. Flush DNS on your computer. On Windows, open Command Prompt and run ipconfig /flushdns. Open the admin page in a private window or with extensions disabled. Ad blockers and security extensions sometimes block /admin pages. Try another network, like mobile hotspot. If it works there, your ISP or router’s DNS is blocking the page, not Firefox.

If one of these fixes it, you won’t need to post. If not, add what you tried to the “What I’ve tried” section so people don’t suggest the same steps.

11/5/26 I am running Windows 7 Pro (64 bit, Quad Core) on a desktop. Latest Firefox v. 115.44.0esr (64-bit). Latest Thunderbird v. 115.18.0 (64-bit). No VPN (but worked before). Security settings "off" (I have checked and checked -- hours and hours.)

I have been having Firefox browser authentication errors for months -- but suddenly now all the time on some websites. Examples are: Amazon -- OK. Ebay -- OK (sort of). Yahoo -- OK. Youtube -- OK. Lowes.com -- blocked (see above). Walmart.com -- blocked (same). Etc.

I have been having Thunderbird email authentication errors for months -- but suddenly now all the time. Can't log on to ISP email account (but I can in the browser). "Non-overridable TLS error occured." I have an Arch Linux desktop with Firefox -- works fine. The Arch Linux Thunderbird works fine.

This sucks. Time to change browser and email client? Please advise.

D. Stewart

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Reference #18.b56b0117.1793627278.149f07dd

https://errors.edgesuite.net/18.b56b0117.1793627278.149f07dd

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