Welcome Roy283,
Sounds like you're having issues viewing album artwork on your PC in iTunes. We'll do our best to assist.
Have you had a chance to check for any iTunes update that may be available for your PC? If not, we'd check and get that installed: Update to the latest version of iTunes - Apple Support
On your PC
If you don't have iTunes installed on your computer, download iTunes from the Microsoft Store (Windows 10 or later). You can also download the latest version of iTunes from Apple's website.
If you downloaded iTunes from the Microsoft Store
Versions of iTunes from the Microsoft Store update automatically when new versions are released.
You can also check for updates through the Microsoft Store.
If you downloaded iTunes from Apple's website
1. Open iTunes.
2. From the menu bar at the top of the iTunes window, choose Help > Check for Updates.
3. Follow the prompts to install the latest version.
If Check for Updates isn't an option in the Help menu, then you downloaded iTunes from the Microsoft Store.
Should the issue persist, does this occur with specific albums or all albums in iTunes? Have you made any recent changes to your PC or network? Does it continue if you test another Wi-Fi network?
Hoping to hear how it goes, cheers.