Take a breath and watch as your screen returns a message that confirms all those stale entries in your DNS Resolver guide to Office 365 sign-in errors Cache have been successfully flushed away. It’s almost symbolic—a fresh start for your internet browsing. When you clear out those old records, your system shortens the time it takes to resolve domain names—meaning that websites can load faster. Studies have shown that up to 30% of total page load times can be due to DNS resolution delays.

• This means that even if the website has changed its IP address, your computer might still be trying to connect using incorrect data.
• If the connection is slow or inconsistent, you can restart the router or contact your internet provider/IT admin for help.
• Restarting your router can refresh its internal processes much like restarting a computer would do for your operating system.
• This can help optimize Outlook’s performance and fix the synchronization issues.
• Regular maintenance improves performance and helps ensure a seamless browsing experience.
• This often happens because the cached DNS record is stale or incorrect.
• Think of it like trying to change lanes in traffic; sometimes you need to pause while backing out before you’re able to merge smoothly into a new flow.
• A few simple commands in Terminal can refresh this data and regain your network connection.

Solutions to Fix the Sync Issues in Outlook

The first step in your troubleshooting toolkit is simply restarting your computer. Often overlooked, this step can be remarkably effective since it allows your operating system to refresh its processes and resolve any lingering issues that might be causing connectivity problems. 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a restart will help refresh network connections, clear out temporary settings, and potentially fix conflicts from outdated data. After successfully flushing your DNS cache, if you’re still experiencing issues with connectivity, it can feel frustrating.

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

If not, you can completely uninstall Microsoft Office and then reinstall it. Now, restart Outlook and check if Outlook synchronization is working. You can check the error message to find the cause behind the sync issue and fix it. If an external address just do your own forward lookup zone in your DNS servers and deal with it there for your internal clients. He can connect fine at home thus far, this issue seems present only when connected to our internal network.

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

During the scanning process, security applications, like antivirus diagnose Office activation conflicts 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.



According to a 2024 survey by TechRadar, about 40% of users who faced intermittent internet problems found relief simply by flushing their DNS cache. It’s such an effective method that many even suggest doing it regularly as routine maintenance for your home network. Flushing DNS on Linux can indeed feel a bit daunting due to the multitude of distributions available, each with its own quirks and methods. However, understanding which DNS resolver your system is connection status shows disconnected using can simplify the process significantly. Most modern Linux distributions, especially those based on Ubuntu, utilize systemd-resolved or dnsmasq, while RedHat-based distributions often run the Name Server Cache Daemon (Nscd). Knowing this will help you execute the correct commands, expediting the troubleshooting process.