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Step 2: Type Outlook.exe /resetnavpane on the Run window and click the OK button to run it. Modify your profile to ensure that you are using the correct Microsoft Exchange information service. If your Outlook client software or Windows operating system software is out of date, you might have problems sending and receiving email. You will most likely find that setting the outgoing port to 25 ( In Outlook - Flie, Account, Account Settiungs, Change, More settings, Advanced) will solve this.
How to do that? Follow the below tutorial. I had exactly the same WIN10 Outlook 365 (Outlook 2016) problem. You can also try using the /resetnavpane command. Once the key is deleted, Outlook settings will restore to default and the “Outlook cannot log on” should be removed. Modify your profile to ensure that you are using the correct Microsoft Exchange information service. The Microsoft Exchange information service in your profile is missing required information. Step 2: Right-click the outlook key on the left pane and then choose the Delete option to remove it. verify you are connected to the network and are using the proper server and mailbox name. HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\outlook If yes, please make another change in Windows Registry Editor.
Now try logging in to Outlook again and see if the error “Outlook cannot log on” persists. Step 4: Locate the following three DWORDs on the right pane and change their value data to 1.
Note: x.0 depends on the version of Outlook you are using. Step 3: Then, continue to open x.0 > Outlook > AutoDiscover Step 2: Once Windows Registry Editor opens, paste the following path into the bat at the top of the window like the following screenshot.Ĭomputer\HKEY_CURRENT_USER\Software\Microsoft\Office Step 1: Type regedit in the Windows search bar and then hit the Enter key. The First Change: Modify the Value of keys So, it is wise to back up your registry before making changes. There are only two options: 1) or Exchange ActiveSync compatible service or 2) POP or IMAP. However, under 'Add Account' there is not an option to set up an Exchange account. I deleted it from my profile and went to add it back. But note that improper changes in Windows Registry Editor can lead to serious problems. I recently upgraded to Office 2016 from Office 2013 and the Exchange account wouldnt work. The third thing that you can you do is making changes to Windows Registry. # Make Changes in Windows Registry Editor Step 4: Continue to delete all files from the 16 directory. Step 3: Locate the Microosft\Outlook directory and then delete. Even though I am two years late to this party, I cannot stop laughing when I think of how beautifully inane and appropriate this solution is for all the woes Microsoft keeps. Step 2: On the Run window, type %localappdata% and click the OK button. Holding down the Enter key did indeed resolve my failed efforts to connect to my newly migrated Office 365 mailbox using Outlook 2016 on a non-domain attached machine. Step 1: Press Windows + R to launch the Run window. Read More # Delete Files from Outlook Directoryĭeleting files from the Outlook directory may fix “Outlook log on”.