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problem with network always acces copilot but with other account or not login in is using normaly
if force to login microsoft account error code 400 or too many request
An application or feature powered by Windows Copilot to assist users with tasks and productivity
but the problem, first time i experienced it on android copilot and even i need to use vpn to access it
And the memory durable of copilot can save my chat ordered
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If you are in a restricted region, Microsoft may block access to Copilot service, which is why you need a VPN to connect. When you try to log in, the security systems detect a conflict. Your account might have a "home region" setting that doesn't match the VPN's IP address location. This triggers the HTTP 400 (Bad Request) error as a security measure to prevent potential account compromise. Since this is a geographic and account-level issue, you need workarounds:
If it's not a network issue, your problem is probably geo-lock conflict. Microsoft is blocking your login because it sees a mismatch between your account's perceived location and your VPN's IP address. The methods above give you the highest chance of bypassing the security filters and regaining access to your durable chat memory.
Hi Akmal,
Welcome to Microsoft Q&A!
I understand how confusing and frustrating it can be when Copilot behaves differently depending on the account, especially when you get error code 400 or “Too many requests” during login. This usually happens when there's a network proxy or VPN interfering with Microsoft’s login services. In some cases, your Microsoft account session is corrupted or expired.
Copilot may still appear active or accessible even when you're not logged in because some basic features or cached UI elements may load from previous sessions. If you're using a shared or enterprise device, background services may still run under a system or organizational context. Network-level access may also preload components even before full authentication.
1 - Clear browser and app cache
2 - Network-level solutions:
ipconfig /flushdnsnbtstat -Rnbtstat -RRnetsh int ip resetnetsh winsock reset3 - Complete account refresh
Copilot uses account-based personalization and memory, so personal accounts may have access to more flexible memory features. Work/school accounts are subject to organization policies, which may restrict memory, login behavior, or access to certain Copilot features. Memory is stored per account, so switching accounts changes what Copilot remembers or how it behaves.
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