Error Something went wrong. [657rx]

Hello Govind Kumar

Welcome To Microsoft Q&A
I understand that you are experiencing Office 365 activation error: "Something went wrong. [657rx]", which is a known issue and typically relates to connectivity, authentication, or device registration problems.

Here are some steps that you can kindly follow to help resolve this issue:

1. Sign out and Clear Cached Credentials
   • Sign out of all Office apps
   • Close all Office applications
   • Open File Explorer and go to:

          %localappdata%\Packages\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy
     

   • Delete all files and folders in that location.
2. Disconnect and Reconnect Work/School account
   • Go to Settings > Accounts > Access Work or School
   • Select your business account and click Disconnect
   • Then click Connect and re-add your account
3. Reset Office Activation State:
   • Download Microsoft Support and Recovery Assistant
   • Run the tool and choose Office Activation Troubleshooter.
   • Follow prompts to reset the activation state and remove SSO accounts

I hope it helps, please feel free to let me know if you need any further assistance.

Best regards,

Ian | Microsoft Q&A Support Specialist
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Hi,

If you make any changes or repairs to your PC before the error appear, you can also create a new administrator user on your PC, login to your PC with new user, and then sign-in to Microsoft account with you usual user name and password. This is how I solved this error on my PC without reloading Windows.

Hi Govind Kumar

Just checking in to see if the above information was helpful.  

If you have any further updates on this issue, please feel free to post back.  

If you think my reply is helpful to you, please remember to mark it as an answer. Warm thanks.