FH5 PS5: Infinite Microsoft sign-in loop, unable to link any account

The behavior matches a generic Microsoft account sign‑in loop rather than a PS5‑specific setting. Because it affects multiple Microsoft accounts and devices, the most effective path is to treat it as a Microsoft account sign‑in problem and systematically rule out account blocks and verification issues.

Use these steps in order:

1. Verify each Microsoft account can sign in cleanly on the web
   • For each affected Microsoft account, sign in directly in a browser (not via QR) at:
     • Personal accounts: https://account.microsoft.com
   • If sign‑in fails, loops, or requires repeated codes, fix the account first:
     • If the password is forgotten, reset it using the guidance in Reset your password.
     • If the password is known but “stopped working,” run the Sign-in Helper tool.
     • If the username is not recognized or you see “We couldn't find an account with that username” or “account doesn't exist,” use the Sign‑in Helper as described in the “Steps to recover your Microsoft account.”
2. Check for verification / MFA blocks
   • If codes are requested repeatedly or you see messages like “Try another verification method,” follow the guidance in Troubleshoot Microsoft verification code issues:
     • Try another verification method already on the account (alternate email instead of SMS, or vice versa).
     • Try another network (mobile hotspot vs home Wi‑Fi) when completing the Microsoft sign‑in.
     • Wait at least 24 hours without repeated attempts if a temporary block is suspected, then try again.
     • If still blocked, use the sign‑in helper from that article.
3. Confirm the Microsoft accounts themselves are healthy
   • For each account, after signing in successfully to https://account.microsoft.com, open the Security section and ensure:
     • Security info (phone, alternate email, authenticator) is up to date.
     • There are no alerts about unusual activity or required security actions.
   • If security info was recently changed, there can be temporary restrictions that affect linking to new services.
4. Use the Microsoft account recovery and helper tools if any account behaves inconsistently
   • If any of the accounts:
     • Sign in on the web but intermittently fail or loop, or
     • Show errors about username not recognized or account not existing,
   • Follow the “Recover lost access to your Microsoft account” steps:
     • Use the Sign‑in Helper tool when the username is not recognized or you see “account doesn’t exist.”
     • If the account hasn’t been used for more than two years, it may have been deleted and cannot be reopened.
     • If needed, use the Microsoft account recovery form as linked from that page.
5. Rule out generic Microsoft sign‑in loop issues
   • The loop you see in the FH5 QR flow is similar to the generic sign‑in loop described for support.microsoft.com and Microsoft Edge:
     • These loops are often caused by cookies, cached credentials, or cross‑site sign‑in issues.
   • Since different browsers and devices were already tried, focus on:
     • Clearing cookies and cached credentials on the device used to complete the QR sign‑in (as described for Edge: clear Cookies and other site data and Cached images and files for All time, then retry).
     • Ensuring that the Microsoft sign‑in endpoints are reachable from the network used during QR sign‑in:
       • https://login.microsoftonline.com
       • https://login.live.com
       • https://account.live.com
   • If a firewall, router security feature, or ISP filtering is in place, temporarily test from a different network (e.g., mobile hotspot) while linking FH5.
6. If all accounts are healthy and the loop persists only for FH5 on PS5
   • At that point, the Microsoft accounts and generic sign‑in flow are confirmed working, and the issue is isolated to the FH5–PSN–Microsoft link on that console.
   • Because this scenario is not directly configurable from Microsoft account settings, the next step is to contact game/platform support with:
     • Confirmation that each Microsoft account signs in normally at https://account.microsoft.com.
     • Confirmation that no verification blocks are present (per the verification‑code article).
     • The date the issue started and that it affects multiple PSN profiles and Microsoft accounts on the same PS5.

If sign‑in to the Microsoft account on the web is not completely clean for any of the accounts, resolve that first using the password reset, sign‑in helper, and verification‑code troubleshooting before attempting to link again in Forza Horizon 5.

References:

• I can't sign in to my Microsoft account
• Troubleshoot Microsoft verification code issues
• Troubleshoot common sign-in problems
• Troubleshoot sign in issues for support.microsoft.com