Hi
I'm experiencing a strange issue on Windows 10 and 11 client machine after joining them to a Windows Server 2008 R2 domain.
Before joining the domain(in WORKGROUP mode), I could access the website https://of.moncompteformation.gouv.fr/espace-public/ without any problems. Now, when I try to log in:
I can load the login page.
I enter my credentials and pass the reCAPTCHA.
After clicking "Log in", I get a blank white page, and then a 404 Not Found error if I refresh and the link becomes like this https://of.moncompteformation.gouv.fr/espace-prive/error?error_code=internal_error&error_description=Echec%20lors%20de%20la%20cin%C3%A9matique%20OAuth2%20Callback%20DGEFP.[error message]1
Even after leaving the domain and going back to workgroup mode, the issue remains. Here's what I've tried:
Multiple browsers: Chrome, Firefox, Edge, Internet Explorer (with private browsing and cleared data). Manually changing my DNS to 8.8.8.8 preferred and 1.1.1.1. But didn't change anything.
Even tried to reset my internet settings, clear dns cache and resetting group policies with commands;
netsh int ip reset
netsh winsock reset
ipconfig /flushdns
netsh winhttp reset proxy
RunDll32.exe InetCpl.cpl,ResetIEtoDefaults
RD /S /Q "%windir%\System32\GroupPolicy"
RD /S /Q "%windir%\System32\GroupPolicyUsers"
gpupdate /force
But still nothing
Checking suspect certificates that may have been added by my DNS server but didn't found anything.
Even checked if there wasn't any modification in the host file but nothing changed there.
Wireshark test shows "TLSv1.2 Encrypted Alert" right after login request(I filtered for HTTP, HTTPS and TLS but only got TLS results).
Also removed any actif proxy, firewall or anti-virus but I can't still get access to the website in workgroup(out of domain)
Creating a fresh new user account but still got the same issue
Resetting the PC (keeping personal files) didn't work but I tried a full reset on the win10 computer and it can now login to the website again but I would prefer a less extreme solution to bring things back to normal because I had many computers connected to that domain and I prefer not to reset each of them.
This seems related to some domain or certificate-related configuration that persists. My main aim is to bring back all the computers that got that issue after joining the domain to normal. Any ideas or hints would be greatly appreciated!
Thanks in advance