When he reboots his laptop, he cannot connect to Exchange via Outlook. If he flushes DNS, Troubleshoot Office 365 Sync and Login Issues he can reconnect even though the address/host name doesn’t change and his pingpath is unaltered. Imagine being able to load websites faster just by executing this simple command! This procedure proves especially useful if you’ve noticed that certain web pages are loading slowly or displaying outdated information after changes were made in your network configuration. This often happens because the cached DNS record is stale or incorrect.

• Occasionally, users may flush their DNS cache only to realize that issues persist, such as slow-loading sites or connection errors.
• You can check the error message to find the cause behind the sync issue and fix it.
• For Mac users, you can use Terminal and run the command `sudo killall -HUP mDNSResponder` for macOS Mojave and later versions; this process clears outdated entries and can help resolve connectivity issues.
• By adopting flushing DNS cache as part of your routine tech maintenance, you’re better equipped to tackle frustrating internet issues while enhancing both speed and security.
• For instance, you might find that a website fails to load despite your internet being otherwise active.
• It’s happened twice today, where I get a PC which is not connecting to Exchange server.

Solutions to Fix the Sync Issues in Outlook

A large OST file can lead to performance issues and result in Outlook not syncing with the Exchange Server, disrupting your workflow. To resolve this, you can reduce the Outlook data file (OST) size. This can help optimize Outlook’s performance and fix the synchronization issues.

How to Resolve Sync Issues in Outlook – A Detailed Guide

This professional OST to PST converter tool can extract data from the backup OST file and convert it into PST file, which you can easily import into Outlook. You can easily search for the missing items, select them, and save them in PST and other file formats, such as MSG, EML, RTF, HTML and PDF. This tool is designed to extract mailbox items from orphaned or inaccessible OST files.

Method 12: Disable Security Applications

To resolve this, you can add Outlook and its related processes as exception in your security software or consider switching to a security application that is compatible with Outlook. You can experience sync issues in Outlook due to poor or no network connectivity. So, first check if your internet connection is stable and working properly. If the connection is slow or inconsistent, you can restart the router or contact your internet provider/IT admin for help. Should problems continue after flushing your cache, examining additional factors like connectivity settings or even external influences such as your internet service provider might be worthwhile. Regular maintenance improves performance and helps ensure a seamless browsing experience.

Flushing DNS Cache: A Step-By-Step Guide to Troubleshoot Your Connection

During the scanning process, security applications, like antivirus FixTechGuide login issue guide software or Windows Firewall might lock the Outlook data file, leading to the sync issues. To check if the security application is causing the issue, you can temporarily disable the antivirus program or Firewall and then update the folders. If the issue is resolved, it indicates that your antivirus software or Firewall is interfering with Outlook.



Flushing the DNS cache on your MacBook Pro running macOS Ventura is an essential troubleshooting step that can help resolve connectivity issues often caused by outdated or corrupted entries. Additionally, if your system feels sluggish, it’s a good idea to delete applications that are no longer needed to free up space and improve overall performance. Over time, as you browse and download various files, your system may store incorrect DNS information inbox repair tool alternative that leads to frustrating loading errors or inability to connect to certain websites. A few simple commands in Terminal can refresh this data and regain your network connection.