How to Establish a Secure Connection
While you're browsing the web on Safari on Mac, you might get a loading error that says something like 'Safari can't open the page because it can't establish a secure connection.' If macOS detects that a server has a weak encryption or if...
Method 1 of 4:
Changing Your DNS Settings
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Picture 1 of How to Establish a Secure Connection Unplug your modem (and router, if you have one) for a few seconds. Doing so will force your modem through a power cycle and might fix some DNS issues.- Many modern modems are also a router, but if you have a separate router, make sure you unplug that as well to ensure the DNS settings are reset.
- Wait for about 30 seconds until you plug in your router and modem.
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Picture 2 of How to Establish a Secure Connection Open System Preferences. You'll find this inside the Apple menu at the top left of your screen. -
Picture 3 of How to Establish a Secure Connection Click Network. This is usually in the third row from the top with "iCloud." -
Picture 4 of How to Establish a Secure Connection Click Advanced. You'll find this in the lower right corner of the pop-up window. -
Picture 5 of How to Establish a Secure Connection Click the DNS tab. You'll see this along with tabs for Wi-Fi and Hardware. -
Picture 6 of How to Establish a Secure Connection Delete the existing entries in the box on the left. You can do this by clicking them to select them and then clicking the minus icon (-) below the box.[2] -
Picture 7 of How to Establish a Secure Connection Add the two Google DNS addresses. Do this by clicking the plus icon (+) below the box and enter 8.8.8.8.[3]- Click the plus icon (+) again and enter 8.8.4.4.
- Click OK to proceed.
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Picture 8 of How to Establish a Secure Connection Click Apply. You'll find this in the bottom right corner of the Network window. -
Picture 9 of How to Establish a Secure Connection Restart your computer. After your computer restarts, try the website again. If it still won't load, continue through the next method.
Method 2 of 4:
Using a Different Browser
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Picture 10 of How to Establish a Secure Connection Open the site in another browser. Most likely, Safari won't load a page because it doesn't meet the security standards of macOS 10.10.4 and iOS 8.4. You can use another browser to unlock these sites for Safari so you can access them with the default browser. -
Picture 11 of How to Establish a Secure Connection Click the lock icon in the address bar. Once the page loads in the other browser, such as Firefox, you'll see a small green lock icon next to the URL address. When you click that, a menu will pop-up. -
Picture 12 of How to Establish a Secure Connection Click the arrow to expand more informationPicture 13 of How to Establish a Secure Connection -
Picture 14 of How to Establish a Secure Connection Click More information. You'll see this at the bottom of the pop-up menu. -
Picture 15 of How to Establish a Secure Connection Click View Certificate. This is on the Security tab, in the top section. -
Picture 16 of How to Establish a Secure Connection Click the Details tab. You'll find this near the top of the page with General.- You'll see the information you need to allow Safari to connect to this site on this tab.
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Picture 17 of How to Establish a Secure Connection Open Keychain. You can either press Cmd + Spacebar and search for keychain in Spotlight or you can open the program from Finder > Applications > Utilities. -
Picture 18 of How to Establish a Secure Connection Click System Roots. You'll see this in the column on the left side of the window under "Keychains." -
Picture 19 of How to Establish a Secure Connection Find the entry that is blocked by Safari. You'll see this certificate information in the "Details" page of the website. It's usually listed as "Issued by…".- For example, if Facebook is blocked by Safari, you'll see in the "Details" page of the website "Issued by: DigiCert SHA2 High Assurance CA," which you should find in your Keychain as well.
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Picture 20 of How to Establish a Secure Connection Double-click the entry. It'll open in a new window. -
Picture 21 of How to Establish a Secure Connection Click the arrow next to "Trust" to expand itPicture 22 of How to Establish a Secure Connection -
Picture 23 of How to Establish a Secure Connection Select Use System Defaults next to "When using this certificate." You don't want to use your system's defaults because that'll end up blocking that page from loading. -
Picture 24 of How to Establish a Secure Connection Select "Always Trust" from the drop-down. This setting allows this page to always load with Safari. You'll see all the other options change as well. -
Picture 25 of How to Establish a Secure Connection Close all the windows you have open and try the website on Safari. If it still doesn't load, continue to the next method.
Method 3 of 4:
Adjusting Your Antivirus Software
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Picture 26 of How to Establish a Secure Connection Open your Antivirus software. You might have a web shield feature enabled that is blocking the website without notifying you that it is doing so.- If you don't have an antivirus application, you can skip this method.
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Picture 27 of How to Establish a Secure Connection Look for Web Shield. Your antivirus software may or may not have a feature called "Web Shield" or something similarly named. You can generally perform a search in your antivirus software or browse the features. -
Picture 28 of How to Establish a Secure Connection Disable Web Shield. If Web Shield is enabled, it could be blocking the website. -
Picture 29 of How to Establish a Secure Connection Use Safari to try to load your website. If the page still won't load, continue to the next method.[5]
Method 4 of 4:
Disabling IPv6
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Picture 30 of How to Establish a Secure Connection Open System Preferences. You'll find this inside the Apple menu at the top left of your screen. -
Picture 31 of How to Establish a Secure Connection Click Network. This is usually in the third row from the top with "iCloud." -
Picture 32 of How to Establish a Secure Connection Click to select your network. You'll see a list of networks in the menu on the left. When you single-click your network, it will highlight in blue. -
Picture 33 of How to Establish a Secure Connection Click Advanced. You'll find this in the lower right corner of the pop-up window. -
Picture 34 of How to Establish a Secure Connection Click the TCP/IP tab (if not already active). You'll see this in the row of tabs with DNS, and Hardware. -
Picture 35 of How to Establish a Secure Connection Click {{MacButton|Automatically" next to "Configure IPv6." A menu will drop-down. -
License: Fair Use (screenshot)
nSelect Manually. This is usually the second listing in the drop-down menu. -
Picture 36 of How to Establish a Secure Connection Click OK and Apply to close all windows.
Update 04 March 2020
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