Solving the “Outlook Cannot Connect to Server” Error: Expert Tips and Tricks

Written By Chirag Arora  
Anuraag Singh
Approved By Anuraag Singh 
Published On May 14th, 2024
Reading Time 5 Minutes Reading

The error message “Outlook Cannot Connect to the Server” usually means that the email client program, Microsoft Outlook, is unable to connect to the email server. The inability of Outlook to synchronise data, send or receive emails, or access folders can result from this problem, which stops Outlook from syncing with the email server. The error “Outlook Cannot Connect to Server” is displayed.

What are The Reasons that Cause the “Outlook Cannot Connect to Server” Error?

  • Network problems: Improper internet connection may affect Outlook’s ability to connect to the email server.
  • Inaccurate Configurations: Inaccurate or misconfigured server configurations in Outlook, including ports, server addresses, and security settings, may prevent communication.
  • Server Issues: Outlook’s inability to establish a connection may be the result of maintenance, outages, or other technical problems with the email server. it causes the Microsoft Outlook Cannot Connect to the Server error.
  • Software or Firewall Interference: Firewalls, antivirus software, or other security applications may obstruct Outlook’s connection to the server, resulting in the error.
  • Outdated Software: Occasionally, using an out-of-date version of Outlook can cause problems with server setup compatibility.
  • Profile or Add-in problems: Incompatible add-ins or extensions or corrupted Outlook profiles might cause connectivity problems.
  • TCP/IP Protocol Stack Issues: Outlook and the email server connectivity issues can occasionally be brought on by issues with the computer’s TCP/IP protocol stack.

To properly analyze and resolve the Outlook Not Connecting to Server error, it is imperative to understand the precise cause of the problem. Users can restore email functioning and reconnect Outlook to the email server by determining and fixing the underlying issue.

How to Fix the “Outlook Cannot Connect to Server” Error?

Point 1. Verify the Account Credentials and Accuracy of your Exchange Server Name

Make sure your account information and exchange server name are accurate; if not, Outlook will not connect to the server when you use this program.

To validate your Outlook account credentials, take the actions listed below.

  1. First, Launch Outlook on your PC.
  2. Second, Go to the File>Info>Account and Social Network Settings>Account settings”.
  3. Finally, Select the account from the dialog box, delete the current account, and enter your login information again.

Read more: How to Open a PST file.

Point 2: Repair A Profile Using Outlook File Repair Tool

You may receive an Outlook error message stating that you are unable to connect to the server because the PST file is corrupted. All you have to do in these situations is fix the PST file. Fortunately, Solutions like SysTools PST Repair Tool will help in terms of data recovery from corrupted PST files and PST file repair. You may restore every piece of mailbox data, including tasks, emails, contacts, and more, with the use of this tool. You can also save the Verified data in PST or other formats.

To find out how to fix your corrupted PST file, follow these steps:

  1. First, Download and Run the Software to the system.

Fixing the "Outlook Cannot Connect to Server" Error

2. Secondly, Add PST File & Preview Emails with Attachment

3. Resolve PST file damage and restore a healthy PST file.

Outlook Cannot Connect to Server

4. Finally, Save healthy PST Files in the Desired Export Option
 "Outlook Cannot Connect to Server"

Point 3: Check the Network is Connected to your Computer Properly or not

if you still receive the problem “Outlook Cannot Connect to Server”. It is time to examine your internet connection, You will not be able to connect to any servers if there is a network issue or if it is down. In these situations, you must confirm that you link your system to the network and ensure that your internet connection is working properly.

  • Try to connect the same network with a different device. Try to open Outlook on the device where it’s installed and see if it functions properly now.
  • If you are using a public network, you can try a private one.

Point 4: Verify the Connection to Your Microsoft Exchange Server

To check the connectivity of your Microsoft Exchange service, take the following actions.

  1. First, Launch Microsoft Outlook.
  2. Secondly, Select “File” > “Info” > “Settings for Account and Social Networks” > “Account Settings.”
  3. Lastly, Examine the information in your Exchange account. You will notice the orange indicator mark if there is a problem with the connection.

Point 5: To Connect to the Microsoft Exchange Server, Choose SSL

To resolve the Outlook cannot connect to server issue, you can utilise the SSL/TLS encryption techniques.

  1. Firstly, Open the Outlook Application in your system.
  2. Now Go to File > Account Settings > Server Settings.
  3. Last, now using the dropdown menu, select SSL/TLS as the encryption method.

Point 6: Repair Outlook Account

You can attempt fixing your Outlook account if you are still unable to establish a connection to the Outlook server. The following are the ways to fix your Outlook account.

  1. Firstly, launch the Outlook application on your system.
  2. Secondly, navigate to Files > Info > Account Settings > Account Settings.
  3. Last, Select your account and click repair to fix it.


Your ability to access your account and emails will be restricted by the “Outlook Cannot Connect to Server” error. Using the above-mentioned techniques, we can circumvent certain patches to find the reasons why we can not rejoin to Exchange Server.


By Chirag Arora

Chirag Arora is a seasoned professional who wears multiple hats in the digital realm. As a Digital Marketing Manager, he orchestrates successful online campaigns, optimizing brand visibility and engagement. Additionally, Chirag brings meticulous attention to detail to his role as a Content Proofreader, ensuring that every piece of content shines with accuracy and clarity.