iCloud encountered an error while trying to connect to the server.

Hey maniklal,

Since the same continues, another alternative is using iCloud for Windows. The following guidance from Set up and use iCloud Photos on your Windows PC - Apple Support can help you get started.

"Turn on iCloud Photos

Make sure that you set up iCloud on your iPhone, iPad, or iPod touch or Mac, that you turned on iCloud Photos, and that you're signed in with your Apple ID.

1. Download iCloud for Windows.
2. Open iCloud for Windows. Make sure you're signed in with your Apple ID. 
3. Next to Photos, click Options.
4. Select iCloud Photos.
5. Click Done, then click Apply.
6. Turn on iCloud Photos on all of your Apple devices.

In iCloud for Windows 10 or later, you can also choose to use Shared Albums, and customize the location of your Shared Albums folders."

If that doesn't work for you or if you'd prefer to download directly from iCloud.com, it may be best to reach out to Apple Support for more help. You can contact Apple Support from Get Support.

All the best.

Hi there maniklal,

Thanks for reaching out to Apple Support Communities. It sounds like you're getting an error when attempting to download your photos from iCloud. We're happy to provide some assistance.

The resource that led you here is a great starting point: If you can't connect or sign in to iCloud

Let's also check to make sure the system requirements align: System requirements for iCloud

And, if possible, let's test signing in with another device or use another browser: Set up iCloud on all your devices

If the issue continues, check your network connections and test a different Wi-Fi network. Let us know the results, as that will help inform our next steps.

Cheers!

Hey maniklal,

From the description it appears you're using a Windows computer to sign in to the iCloud website. Have checked to see if this works while using a different browser to know if that's what is causing the issue? Are you having other issues using the iCloud website or is it only when you're trying to download the photos?

Keep us posted.

Take care!