can’t login office.com.

Issue description: can’t login office.com.

Resolution Steps: we were able to reset your MFA by re-registering your MFA and also removed you from the MFA block list in the Azure environment.

Resolution 1: Click on get code a different way.

Resolution 2: Have Microsoft 365 Global administrator resetting MSA. In multi-factor authenticator, check Require selected users to provide contact method again and Delete all existing app password generated by the selected users.

Or go to Azure portal>Home>Company name>Users>Users>User name.

Resolution 3: Unlock a blocked user.

  1. Login Azure portal.
  2. go to Home>Security>Security>Ricky users,
  3. Remove the user from risky users.

Fixing ‘421 4.4.2 Connection dropped due to SocketError’

Situation: in the past weeks, the client (A) can’t receive one of their customers (B) emails. No one in A company can’t receive the emails from company B.

Troubleshooting 1: For the sender

It may be that AOL/Yahoo etc are blocking emails from domains which do not have SPF set up. They are not blocking them in the usual way but are effectively dropping the connection at the network level when they check for SPF.

If you setup spf for your domain it should resolve the problem and allow your emails to flow.

This is the example how we fix the problem – Update the TXT records.

DMARC Record

Hostname:

_dmarc

Record:

v=DMARC1; p=none; pct=100; adkim=r; aspf=r

I’m doing this now and will reply back once confirmed.

UPDATE: I can confirm that after adding SPF records the emails are now going through. This is not very good in my opinion that AOL / Yahoo are just silently dropping the connection but I’m guessing that them get so much spam from domains without SPF that it is a large enough benefit to them to do it in this way.

Troubleshooting 2: Please ask the admin of the recipients’ to add your domain in their safe sender list and allow list in the spam filter.

Guest with Edit permissions cannot delete files or rename forlders

Situation: The client has shared a folder in SharePoint 365 with a guest having edit permissions. When the Guest Contributor opens the link, he is able to upload files and create sub-folders. But he cannot delete or rename any files or folders.

Troubleshooting: “Share People you specify can edit” and “Anyone with the link can edit” are different. If you chose “Anyone with the link can edit”, the external user can upload files/folders, but can’t delete or rename them.

Fixing “External sharing is disabled”

Situation: The external users can’t access shared SharePoint with this error: “External sharing is disabled”.

Resolution 1: Make sure external sharing at organization level is enabled. Please refer to these posts.

Resolution 2: Make sure OneDrive sharing is enabled. Please refer to this post:

Fix 80180018 – A server error occurred

Situation: when a user setup Microsoft account on his PC, he receives this error: 80180018 – A server error occurred.

Resolution 1: Update your TPM Firmware.

Resolution 2: Remove email Account from Outlook and re-add it.

Resolution 3: Reconnect Your Work or school Account in Settings>Account>Access work or school.

Resolution 4: Create EnableADAL Key in your Registry Settings

  • To open the Registry Editor, press Windows + R, type regedit, and press Enter.
  • Go to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0 \Common\Identity.
  • Click the Identify key with the right mouse button, then choose New REG DWORD. The new key is called EnableADAL. Keep it at 0 values (zero).
  • Check to see if you can get into your Teams account after restarting your computer.

Resolution 5: Enable MFA (Multifactor Authentication.

Resolution 6: Setup the Outlook manually.

The device that is required by this cryptographic provider is not ready for use

Situation: when a user setup Microsoft account on his PC, he receives this error: 80090030 and The device that is required by this cryptographic provider is not ready for use.

Resolution 1: Update your TPM Firmware.

Resolution 2: Remove email Account from Outlook and re-add it.

Resolution 3: Reconnect Your Work or school Account in Settings>Account>Access work or school.

Resolution 4: Create EnableADAL Key in your Registry Settings

  • To open the Registry Editor, press Windows + R, type regedit, and press Enter.
  • Go to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0 \Common\Identity.
  • Click the Identify key with the right mouse button, then choose New REG DWORD. The new key is called EnableADAL. Keep it at 0 values (zero).
  • Check to see if you can get into your Teams account after restarting your computer.

Resolution 5: Enable MFA (Multifactor Authentication.

Resolution 6: Setup the Outlook manually.

Fix Microsoft 365 Error 80090030

Situation: when a user setup Microsoft account on his PC, he receives this error: 80090030 and The device that is required by this cryptographic provider is not ready for use.

Resolution 1: Update your TPM Firmware.

Resolution 2: Remove email Account from Outlook and re-add it.

Resolution 3: Reconnect Your Work or school Account in Settings>Account>Access work or school.

Resolution 4: Create EnableADAL Key in your Registry Settings

  • To open the Registry Editor, press Windows + R, type regedit, and press Enter.
  • Go to HKEY_CURRENT_USER\Software\Microsoft\Office\16.0 \Common\Identity.
  • Click the Identify key with the right mouse button, then choose New REG DWORD. The new key is called EnableADAL. Keep it at 0 values (zero).
  • Check to see if you can get into your Teams account after restarting your computer.

Resolution 5: Enable MFA (Multifactor Authentication.

Resolution 6: Setup the Outlook manually.