How to Fix Outlook Error 0x80040115 Quickly and Easily

IT administrators often face the Outlook error 0x80040115 in their Microsoft application. This error is a Send/Receive error that occurs due to connectivity issues between Outlook and Microsoft Exchange or Office 365. It eventually prevents emails from being sent or received, which leads to a lack of communication. Even the “trying to connect” text in the Status bar indicates this issue. Read this blog till the end to fix this error using the recovery methods discussed, including the Aryson OST Recovery Tool for quick recovery.

What is the Outlook 0x80040115 Error Code?

Microsoft users often encounter the Outlook Error code 0x80040115. This error is categorised as a Send/Receive error that occurs when there is a connectivity issue between Microsoft Outlook and the Mail servers. This issue occurs frequently, especially in environments that are connected to Microsoft Exchange or Office 365.

A common error message that appears in the Send/Receive Progress window in Microsoft is as follows:

“Task ‘Microsoft Exchange Server’ reported error (0x80040115): The connection to the Microsoft Exchange Server is unavailable. Outlook must be online or connected to complete this action.”

Now, there might be several reasons behind this connectivity issue. Let us understand them first in the upcoming section.

Common Causes of Outlook Error 0x80040115

It is important to understand the root causes behind the error 0x80040115 in order to fix it correctly. Listed below are some of the causes. Analyze your exact issue and choose a suitable recovery method among the ones discussed ahead.

  • There might be an issue with Network stability or DNS resolution.
  • Moreover, firewall or VPN configurations have blocked the communication between Microsoft Outlook and the mail server.
  • The user’s Outlook profile is damaged, or it is not correctly set up.
  • Furthermore, your OST files might be large or corrupted, causing the Outlook error.
  • There might be a mailbox issue on Microsoft Exchange, stopping the connection.
  • The user might be using an outdated or damaged version of Microsoft Office.

How to Fix Outlook Error 0x80040115?

Now, we will explore some of the potential methods to resolve the error 0x80040115 Outlook. Make sure you read through each method carefully to choose one as per the cause of the actual problem. In case none of the manual methods work for you, better opt for the advanced solution to recover your OST files.

Method 1: Clear the DNS Cache

  1. To begin, press the Win+R shortcut key, type cmd, and press Enter.
  2. After that, run the Command Prompt window and type: ipconfig /flushdns.
  3. Now, press Enter to clear the stored DNS cache.
  4. Next, restart the Outlook application and verify whether the issue is resolved or not.

Method 2: Start Outlook in Safe Mode

  1. Firstly, use the Win + R shortcut key, type Outlook.exe /safe, and click Enter.
  2. This will open Outlook in Safe Mode such that all add-ins are disabled.
  3. Then, navigate to the File Tab >> select the Options button >> click on Add-ins.
  4. Scroll down and choose the COM Add-ins from the Manage dropdown >> click Go.
  5. Next, disable the unnecessary add-ins & restart Microsoft Outlook.

Method 3: Disable Problematic Add-ins Manually

  1. Firstly, open the Outlook application and move to the File tab.
  2. After that, click on the Options option & further click Add-ins.
  3. Under the Manage section, select the COM Add-ins >> click on Go.
  4. Now, untick all the add-ins and restart the Outlook application.
  5. Then, reenable each of them sequentially to identify the add-in causing the issue.

Method 4: Repair the Outlook Application

  1. To initiate, run the Control Panel and select the Programs and Features option.
  2. After that, search for Microsoft Office in the list and select it.
  3. Next, click on the Change option and choose Quick Repair mode.
  4. Now, just follow the instructions on the screen to complete the repair process.

Method 5: Create and Set Up a New Outlook Profile

  1. First, run the Control Panel & click on the Mail (Microsoft Outlook) option.
  2. After that, select the Show Profiles option and click on the Add option.
  3. Next, provide a profile name and configure your email account.
  4. Now, set this new profile as the default one and restart Outlook.

Method 6: Improve Internet Connectivity

  1. Firstly, try to restart your modem or router to check if the issue resolves.
  2. You may use a wired LAN connection instead of Wi-Fi if possible.
  3. Now, run a speed test to verify the stability of the internet connection.
  4. Next, you have to temporarily disable VPN or proxy settings.

Method 7: Repair Corrupted Outlook Data Files

  • To fix Outlook Error 0x80040115, first navigate to:

C:\Program Files (x86)\Microsoft Office\root\Office16\ScanPST.exe

  • Next, run the Inbox Repair Tool (ScanPST) on your system.
  • After that, search for and select the corrupted Outlook data file.
  • Next, click on the Start button to begin the scan and recovery process.

ScanPst is a built-in tool that helps to fix the damaged data files and can resolve connectivity issues.

Note:- If your PST file becomes severely corrupted, using a reliable Outlook PST Repair Tool is essential. It can quickly fix damaged data files and recover emails, contacts, attachments, and other mailbox items without data loss. With advanced recovery features, these tools help restore access to your mailbox safely and efficiently, ensuring your important information remains intact.

Important Note: In case none of the above methods work for you, the real issue might reside in the OST files. Even a corrupted OST file can result in the Outlook error 0x80040115. Therefore, to repair these corrupted Outlook files, use the recovery software mentioned below. 

Advanced Solution to Fix Outlook error 0x80040115

Aryson OST Recovery Tool is the most reliable software that helps users to repair and recover batches of inaccessible OST files in one go with complete data integrity and accuracy. Moreover, this software provides the user with a preview panel to verify mailbox items before saving them. Additionally, it offers different advanced recovery modes: Standard, Advanced, and Deep for different levels of corruption. Also, it can save the resultant OST in file formats like PST, MSG, EML, MBOX, and DBX, etc. 

Simple Steps to Fix Error 0x80040115 in Outlook Using the Software

  1. To begin, run the Aryson OST Recovery Tool on your system. 
  2. After that, load the corrupted OST files to recover >> Next
  3. Then, choose Standard, Advanced, or Deep mode as per the level of corruption. 
  4. You have to Scan the selected OST files and click on the OK button. 
  5. Now, once cross-verify the OST files before saving them. 
  6. Next, choose a saving format option & apply the other features of the software. 
  7. Provide the destination location to save the output files and click OK. 

Following the above steps, your OST files have been repaired successfully. This might now fix the error code 0x80040115 occuring.

Final Words

In this blog, we explored some of the root causes of the Outlook error 0x80040115, along with the manual approaches and the automated solution. The user can first try the manual troubleshooting and fix the error code 0x80040115. But, if the manual methods fail, you must fix the corrupted OST files using the automated software discussed above. You can even try the advanced features of the software to simplify the conversion process. Still, if you get stuck anywhere in the process, reach out to our tech support team at Aryson for further assistance.

FAQs

Q1. What is Outlook Error 0x80040115?

Ans- Outlook Error 0x80040115 is a Send/Receive connectivity error that occurs when Microsoft Outlook cannot connect to Microsoft Exchange, usually due to network, profile, or OST-related issues.

Q2. Why does Outlook show “Exchange Server is unavailable”?

Ans- This message appears when Outlook fails to communicate with the Exchange server because of internet instability, DNS issues, firewall restrictions, or server downtime.

Q3. How can I quickly fix Error 0x80040115?

Ans- Check your internet connection, flush DNS, disable VPN, create a new Outlook profile, or repair Microsoft Office. In case nothing works, opt for the Aryson OST to PST Converter to fix Outlook cannot connect to the Server(0x80040115) error.

Q4. Can a corrupted OST file cause this error?

Ans- Yes, even a damaged or oversized OST file can interrupt synchronization and trigger Send/Receive failures.

Q5. Does Error 0x80040115 cause data loss?

Ans- No, it does not delete emails. However, it may block synchronization until the connection issue is resolved and prevent emails from being sent or received.

5/5 - (2 votes)

About The Author:

Rohan Wiese is a Technical Content Writer at Aryson Technologies, specializing in databases, e-mail recovery, and e-mail migration solutions. He enjoys conducting research and generating information that assists database administrators, businesses, and novices in resolving issues with MS SQL Server, MySQL databases, Cloud Computing, and Microsoft Exchange.

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