11 Tips to Fix Outlook Error Cannot Connect to Server

How to fix Outlook error cannot connect to server? In this post, we have covered 11 ways to help you fix cannot connect to server error in Outlook.

Apr 17,2020 • Filed to: Recover & Repair Emails • Proven solutions

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Outlook is a great information manager that’s primarily used by people to fetch emails. What makes it unique from other email managers is the capability it has to store notes, calendars, and tasks. You must connect to the Outlook Exchange Server in order to send and receive emails. But, occasionally, Outlook experience hassle connecting to the server. No worries!! If you’re going through Outlook server error, then continue reading to find out several ways to get this issue fixed.

How to fix Outlook cannot connect to server error?

Below we are going to discuss every plausible method that can help you fix this problem on your Windows PC, irrespective of the cause.


Tip 1: Make sure your account credentials or Exchange server name are correct

Ensure that your account details or exchange server name are correct. Follow the below steps for validating your account credential in Outlook.

Step 1: Open Outlook on your computer.

Step 2: Now, go to “File”>” Info”> Account and Social Network Settings”>” Account settings”.

Step 3: Choose the account from the dialog box, remove the existing account and re-enter your correct account credentials.

check account details


Tip 2: Verify that Outlook is online

How you can ensure that Outlook is online or offline? There are several visual indications, starting with the Outlook status bar at the bottom. If you see a message that says “Working Offline” or “Disconnected”, then it means that your Outlook isn’t connected to the server.

To switch from offline to online mode in Outlook, follow the below steps:

change to online mode


Tip 3: Make sure that your computer is connected to the network

If you still experience an Outlook error message cannot connect to server problem, then it’s time to check your internet connection. If there is a problem with a network or it isn’t working, then you won’t be able to connect to any server. In such cases, you need to ensure that your internet connection is working and your system is connected to that network.


Tip 4: Check your Microsoft Exchange server connection

To check your Microsoft exchange service connection, follow the below steps:

Step 1: Open Outlook.

Step 2: Go to “File”>” Info”> Account and Social Network Settings”>” Account settings”.

Step 3: Look at your Exchange account. If there is an issue with the connection, then you will see the indicator icon in orange color.


Tip 5: Use SSL to connect Microsoft Exchange server

To use SSL to connect Microsoft Exchange server, follow the below steps:

Step 1: Open Outlook.

Step 2: Go to File”>” Info”> Account and Social Network Settings”>” Account settings”.

Step 3: Select your email account and tap “Change”.

Step 4: Click on “More Settings”>” Advanced” tab.

Step 5: Finally, select SSL as a type of encrypted connection and click “Ok”.

use ssl to connect


Tip 6: Configure a connection to a proxy server

If you’re using a proxy server for internet access, then you have to take additional connection configuration steps to address and fix the problem.

Step 1: Open Outlook.

Step 2: Click on the “File”>” Info”> Account and Social Network Settings”>” Account settings”.

Step 3: Select your account and click on the “Change> “More Settings”>” Connection” tab.

Step 4: Under Outlook Anywhere, choose the “Connect to Microsoft Exchange using HTTP” option.

Step 5: Click on the “Exchange Proxy Settings” to specify a proxy server. Then, enter a URL to connect to a proxy server. Select “Connect using SSL only”. And select “Only connect to proxy servers that have this principal name in their certificate” then enter “msstd: URL”.

Step 6: Under “Proxy authentication settings”, select the authentication type: Basic authentication or NTLM authentication and hit “Ok”.

proxy settings


Tip 7: Repair Outlook Account

If nothing still works to fix Outlook server error, you can try to repair your Outlook account.

Outlook account refers to the info associated with servers or email addresses that you have entered in the Outlook. These settings might be disrupted and thereby causes several problems like the one you’re facing now. Repairing an Outlook account could fix the problem. So, try the following steps:

Step 1: Open Outlook.

Step 2: Click on the “File”>” Info”> Account and Social Network Settings”>” Account settings”.

Step 3: Now, select your account and hit on the “Repair” button.

repair outlook account

Step 4: You will be asked to enter your account details or just to confirm them. It is suggested that you should remove the password and then re-enter it in order to eradicate the change that you have entered the wrong password.

Step 5: Hit on the “Next” button. This, in turn, enables Outlook to automatically make a connection with the server and diagnose the problem if there is any.


Tip 8: Disabling Extensions

It could be possible that there is an extension enabled your Outlook which makes you face this problem. In such cases, all you can do is to disable each extension and then try to connect. If it goes great, then it means that there is a problem with an extension(s).

Step 1: Open Outlook.

Step 2: Go to the “File”>” Options”>” Add-ins” from the left bar.

Step 3: Click on the “Go” button, uncheck all the extensions and hit on the “Ok” button.

Restart your Outlook to check whether the problem is resolved.

disable extensions


Tip 9: Rebuilding Outlook data file

You can even try to rebuild the whole Outlook data file to resolve Outlook error cannot connect to the server. The application saves its data and info to an external file. It is a kind of storage for the Outlook that it uses to perform its operations. Here, we will delete this data file. This, in turn, Outlook detects that data loss is lost or missing and then try to rebuild it from the scratch and it could fix the corruption issues if any.

Step 1: Open the “Account Settings” in your Outlook.

Step 2: Click on the “Data Files” tab and after that, choosing the Email account that’s causing issues. Then, tap on the “Open File Location”.

rebuild outlook data file

Step 3: Now, you can rename the file or you can move it to another location.

Step 4: Now, launch Outlook again and it will automatically try to recreate your data file.


Tip 10: Repairing/Reinstalling Outlook

If none of the above methods work and you are still having trouble connecting to the server, then you can try to repair or reinstall the application. However, we still recommend you to repair the Outlook. If that doesn’t work, then you can try reinstalling it completely. Below is how to repair Outlook:

Step 1: Use “Windows + R’ and enter “appwiz.cpl” in the box and hit Enter.

Step 2: Once you’re inside the application manager, find the Microsoft office. Then, right-tap it and choose “Change”.

Step 3: Choose the “Repair” option and hit “Continue’.

repair outlook

If the problem doesn’t go away even after repairing, then you can reinstall Outlook.


Tip 11: Repair a profile using Stellar Outlook Repair

It could be a scenario that the PST file is corrupted and that’s the reason you’re encountering Outlook error message cannot connect to server. In such cases, all you need to do is to repair the PST file. Fortunately, solutions like Stellar Outlook Repair help a lot when it comes to repairing damaged PST files and recovers data in a new PST file. This tool can help you restores the entire mailbox data like contacts, emails, tasks and more. What’s more? You can save verified data as PST or other formats as well.

Get Stellar Outlook Repair on your system and then follow the below steps to learn how to use it to repair your corrupted PST file:

Step 1: Add PST file

Lunch Stellar Outlook Repair and select the “Outlook PST” option from the top menu. Then, select the “Browse’, add desired the PST file and click the “Repair” button.

add pst file

Step 2: Repair the PST file

Wait until the software repairs your PST file.

repair file

Step 3: Preview and save

Once the repair is successful, the software lets you preview restored Outlook mailbox data. Select what you want to save, hit on the “Save Repaired fie”. Then, choose PST as a file format, tap “Browse” >“Ok” to save the recovered PST file on your computer.

preview save


The Bottom Line:

As you can now see that there are several workarounds to help you resolve Outlook server error. If the problem is due to a damaged PST file, then we recommend you to use Stellar Outlook Repair. For repairing corrupted PST files, this tool has no competition on the market.

Amy Dennis

staff Editor

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