After hitting Enter, you might not see any visible feedback. This lack of response simply means that the command was successful. Occasionally, users may flush their DNS cache only to realize that issues persist, such as slow-loading sites or connection errors. These may be attributed to more than just outdated records; they could include other underlying network issues. Each of these commands plays a vital role—essentially refreshing your system’s memory regarding domain names.

Step II: Check Network Settings

You can experience sync issues in Outlook due to poor or no network connectivity. So, first check if your internet clear Outlook credentials manager 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.

• It’s such an effective method that many even suggest doing it regularly as routine maintenance for your home network.
• Whether you’re using Windows or Mac, initiating a restart will help refresh network connections, clear out temporary settings, and potentially fix conflicts from outdated data.
• When you clear out those old records, your system shortens the time it takes to resolve domain names—meaning that websites can load faster.
• According to a 2024 survey by TechRadar, about 40% of users who faced intermittent internet problems found relief simply by flushing their DNS cache.
• This command checks the listening services for DNS queries on port 53.
• After successfully flushing your DNS cache, if you’re still experiencing issues with connectivity, it can feel frustrating.
• This tool is designed to extract mailbox items from orphaned or inaccessible OST files.

Method 2: Check if the Work Offline Mode is Disabled

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Terminal and run the command `sudo killall -HUP mDNSResponder` for macOS Mojave and later versions; this process clears outdated entries and can help resolve connectivity issues. During the scanning process, security applications, like antivirus 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 FixTechGuide Office 365 troubleshooting with Outlook. 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.



Flushing the DNS cache on your MacBook Pro running macOS Ventura is an essential troubleshooting step that can help resolve connectivity issues Fix Outlook and Office365 Sync 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 that leads to frustrating loading errors or inability to connect to certain websites.

Solutions to Fix the Sync Issues in Outlook

To resolve this, you can reduce the Outlook data file (OST) size. This can help optimize Outlook’s performance and fix the synchronization issues. When he reboots his laptop, he cannot connect to Exchange via Outlook. If he flushes DNS, he can reconnect even though the address/host name doesn’t change and his pingpath is unaltered.

The journey of an Email: From sender’s domain to recipient’s inbox!

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. Flushing that cache wipes the slate clean, allowing your computer’s resolver to fetch the latest and most accurate IP addresses for websites. However, it’s worth noting some concerns from users on community forums regarding whether flushing the DNS could disrupt active connections.



It’s happened twice today, where I get a PC which is not connecting to Exchange server. I have no issues sending email from same account from my phone, laptop, or web mail. Moving forward from a simple reboot, we now focus on ensuring that your network settings are configured correctly. If prompted, enter your password—this is required for administrative privileges. Remember that while you type your password, no characters will appear in the Terminal for security reasons; just hit Enter once you’ve typed it.

Method 11: Clear Outlook Cache

Open forum for Exchange Administrators / Engineers / Architects and everyone to get along and ask questions. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.

Why Choose Stellar?

Now, let’s look at specific challenges that this simple action can resolve effectively. Resolving these concerns shouldn’t take long either; averages suggest that fixing slow connections often takes around 15 minutes, while addressing website access issues typically wraps up in about 10 minutes. Sometimes trouble can originate from the router side of things rather than your individual device. Restarting your router can refresh its internal processes much like restarting a computer would do for your operating system. One of the main benefits of flushing your DNS is the refreshing of these stored records.