This post fromMiniToolteaches you how to fix the error.

HTTP/1.1 Service Unavailable

HTTP/1.1 service unavailable error messages are also known as HTTP status codes.

The following are some reasons for the issue.

turn on the Set the time automatically option

you’ve got the option to have a go at reset your box and refresh browsers.

Then, its recommended to check the Internet connection.

After trying these methods if the error still appears, you’re able to try the next solutions.

click Clear SSL state

Step 2: Next, allow port 443 through the firewall for the storefront IP.

Step 4: After that, see if the following expression is missing from the storefront store name.

you’re free to venture to visit the unified gateway page.

clear cookies and cache

Heres how to do it.

Step 1: Press theWindows+Ikeys togetherto openSettings.

Step 2: Go toTime & language>Date & time.

Step 3: In the right pane, turn on theSet the time automaticallyoption.

Thus, you’re able to reset the SSL state to fix your issue.

Step 1: Go toControl Panel(viewed byCategory) in Windows 10.

Step 2: ClickNetwork and Internet > data pipe and Sharing Center > Internet Options.

Step 3: Under theContenttab, clickClear SSL State.

Step 4: Save then change and restart broswer to see if your issue is fixed.

There are the steps.

Step 1: Open Google Chrome and hit the three-dot button in the upper right corner.

Step 2: ChooseMore toolsand clickClear browsing data.

Step 3: In the pop-up window, setTime rangetoAll time.

Check theCookies and other site dataandCached images and filesoptions.

Step 2: Go toUpdate & Security>Windows Security>Open Windows Security.

Step 3: In the new window, clickRun a new advanced scan.

Step 4: ChooseFull scanand clickScan now.

Here is how to do that:

Step 1: Typecmdin theSearchbox.

Then right-clickCommand Promptto selectRun as administrator.

Step 2: On thecommand promptwindow, jot down the following commands and pressEnterafter each.

If you come across the same error, try these solutions.

If you have any different ideas to fix it, you might share them in the comment zone.