Step 2: Click Settings on the upper right corner of the main page to open the snapshot. Step 1: Open Google Chrome, and then click the Customize and control Google Chrome button. If all of the fixes above are not working, you can try to reset Google Chrome browser to fix the “ERR_TUNNEL_CONNECTION_FAILED” error. So, you need to remove or disable these extensions and toolbars to fix the “ERR_TUNNEL_CONNECTION_FAILED” error. Fix 5: Remove Conflicting Browser ExtensionsĮxtensions and toolbars installed on your browser are likely to conflict with your website loading. Now, re-open your Google Chrome and check if this issue is resolved or not. Step 4: Click the Clear data button to apply this change.
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Step 3: Select the Browsing history, Download history, Cookies and other site data, and Cached images and files checkboxes. Step 2: Go to the Advanced tab and select All time from the drop-down menu. Step 1: In the Chrome page, press Ctrl + Shift + Delete keys at the same time to open the Clear browsing data window. So, you can try clearing it to fix the error. Sometimes, the corrupted Chrome cache can cause the error. So, to fix this, you can try these VPN connection extensions from the Google Chrome extensions online store and check if you can access the site normally. Your computer's login to the network may be blocking your access to the site.
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This post - How to Flush DNS Resolver Cache in Windows 10/8.1/7 may be the one you need. You can also try flushing the DNS resolver cache to fix ERR_TUNNEL_CONNECTION_FAILED Chrome. Mark the replies as answers if they helped.Read More Fix 2: Flush the DNS Resolver Cache
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To check if your issue is related to your Communi Gate Pro mailing and groupware system, please try turning off other programs(such as antivirus software and your Communi Gate Pro mailing and groupware system) and reconfigure your email account directly.There could be some add-ins in your Outlook client that cause this issue, so it is suggested to start your Outlook in safe mode (Press Win + R, type “outlook /safe”, press Enter.) and see if the issue continues.If this is a issue related to Outlook client, please try the following suggestions to troubleshoot: To configure another email account on your Outlook client and see if the issue can be reproduced. To check if it is a client issue, please try logging in to your web mailbox and see if it can work normally. Would you like to go offline? ]Īccording to my research, the error above is usually related to the connections between Outlook client and your mail server. >Your server is not available at the moment. Is this a problem that has only recently occurred? If so, what specific operations did you do before this problem occurred? What's the type of your account? POP, IMAP or Exchange? Please make sure you have upgraded your Outlook to the latest version. What's the version of your Outlook? (File > Office Account > About Outlook).
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