Able to log into GMX webmail on any browser but will not display email. Broken scripts?

Question

Able to log into GMX webmail on any browser but will not display email. Broken scripts?

Shawn Proctor 31

Brave, Edge, Chrome, or Firefox. Able to log into GMX webmail, most of the time. When I can't it goes to the support page even though credentials are correct. When it does log in the browser will not display emails and will time out prompting to refresh or exit. Duckduckgo browser works flawlessly.

I have cleared cache, deleted data (all time), flushed the DNS, changed DNS server (ie: opendns or google) left it on default. Turned off shields, don't have any ad-ons like adblocker installed.

Mobile app works on my samsung s22 and webmail works on all browser on my Asus laptop, just not on my desktop. My desktop is current on latest updates (25H2) with March out of band update that fixed broken web log ins from 10 days earlier.

I am at a loss as how to fix this problem. I haven't uninstalled the KB out of band fix. I thought this was supposed to fix the problem.

Any help would be greatly appreciated.

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Answer 1

Emma1-N 10,930 Microsoft External Staff Moderator

Welcome Shawn Proctor,

I understand how frustrating it can be when GMX Webmail works on your Samsung phone, your Asus laptop, and even DuckDuckGo Browser on the affected desktop, the issue appears to be specific to the Windows environment on that desktop rather than your GMX account itself.

Could you please confirm:

Does the issue occur when using an InPrivate/Incognito window in Edge or Chrome?
Are you using any third-party security software, web filtering, VPN, or firewall software on the desktop (Norton, Bitdefender, ESET, Malwarebytes, etc.)?

In the meantime, please try these quick checks:

Option 1: Create a new Windows local user account

Sometimes browser and web rendering issues are caused by a corrupted Windows user profile.

Open Settings > Accounts > Other users
Select Add account
Create a temporary local account
Sign in to that account and test GMX Webmail

Option 2: Disable hardware acceleration in Edge

Open Edge
Go to Settings > System and performance
Turn off Use graphics acceleration when available
Restart Edge and test again

Option 3: Verify system file integrity

Open Command Prompt (Admin) and run:
- DISM /Online /Cleanup-Image /RestoreHealth
- sfc /scannow
- After both commands complete, restart the PC and test GMX again.

I hope this helps. Please let me know the results of the above tests, and I will do my best to assist further.

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Shawn Proctor 31 Reputation points

2026-08-12T11:35:46.39+00:00

It occurs in private in all the browsers. I am also using Nord vpn which I have turned off and on. I did the dism and scan now without any change.
Shawn Proctor 31 Reputation points

2026-08-12T12:11:20.2866667+00:00

I was able to log in using Edge, turned off graphics acceleration, didn't notice a difference on that. I haven't tried the temporary account yet, but the other browsers, Chrome, Firefox, and now Duckduckgo don't work, in private mode or not, on my laptop now. I'll try making a temp account on my laptop.
Shawn Proctor 31 Reputation points

2026-08-12T14:42:14.3666667+00:00

I tried using your suggestions both on the laptop and the desktop but am still having the same problem. I was able to add GMX account into Outlook. Which will work better I think. At least until I figure out what Windows is doing. Grrr
Emma1-N 10,930 Reputation points Microsoft External Staff Moderator

2026-08-13T07:57:50.8366667+00:00

Hello Shawn Proctor,

At this point, I would be most interested in the result of the temporary Windows user account test. If GMX works correctly from a newly created local Windows account, that would point toward a profile-specific issue. If it fails there as well, we can largely rule that out.
Shawn Proctor 31 Reputation points

2026-08-13T13:26:26.5133333+00:00

I was able to switch to a local account, couldn't create another account for some reason. It didn't work. It's happening on my laptop now too. Edge works on my laptop but desktop still broke.
Shawn Proctor 31 Reputation points

2026-08-14T04:13:33.16+00:00

I can log in on my laptop local account and log in to gmx account using Edge but still have the problem of displaying emails. Chrome Firefox and brave fail to log in at all. Same with duck duck go.

I performed a DISM clean up. It found some issues but corrected them. Did a sfc /scan now and rebooted then tried using the local account using all the browsers, all failed logging in to gmx except Edge which failed to render the emails.

I'm almost tempted to get a hold of MS tech support and have them remote into my system to see if they can correct the problem.

What do you think? I've exhausted my windows know how even with your help.
Shawn Proctor 31 Reputation points

2026-08-14T05:29:47.32+00:00

I was able to create another profile (admin), logged into it, let windows do its thing, used Edge to try and log in to GMX but it didn't like my password, which I know is correct because I just changed it yesterday. So I changed it again, tried logging in with the newly created password and it wouldn't log me in, just gets me to the support page talking about passwords and usernames.....I fired off an email to GMX support stating the same that I am saying here. So now I have two users on the laptop and neither one works for GMX that is. Everything else works fine.
Emma1-N 10,930 Reputation points Microsoft External Staff Moderator

2026-08-14T07:56:28.22+00:00

Hello Shawn Proctor,

Thank you for the update. Since the issue occurs:

Across multiple browsers

In Private/Incognito mode

On multiple Windows user profiles

While the GMX account works on other devices and in Outlook

this is looking less like a Windows or browser problem and more like a GMX authentication/account-side issue.

At this point, I recommend waiting for GMX Support's response, as the password resets and redirects to the GMX support page suggest the login process itself may be failing on GMX's side.
Shawn Proctor 31 Reputation points

2026-08-14T12:32:12.8366667+00:00

That's what I'm doing. They wanted my ip address, which browsers I was using and whether or not I was using a vpn. I gave them the heads up on all that I had tried so far. Thanks for the help. I figured that it was a scripting problem on their end. It's a German email company so maybe the EU has changed the security protocols some how. But my proton email works fine and they are EU too. I hope they can maybe reset my log in account some how. That's why they need my ip address?
Emma1-N 10,930 Reputation points Microsoft External Staff Moderator

2026-08-15T10:06:17.9766667+00:00

Hello Shawn Proctor,

You're welcome. Requesting your IP address is normal during login investigations. GMX may be checking their authentication and security logs to see why your sign-in attempts are being redirected or flagged.

Given that the issue affects multiple browsers and Windows profiles, while Outlook and other devices work, it does seem more likely that GMX will need to identify the cause from their side.

For now, I think you've provided GMX with the right information. Hopefully their review will reveal why the web login is failing on that PC. Please let us know what they find.