Hello, thank you for reaching out to Microsoft Q&A.
Could you please check whether you experience the same issue when connecting your device to a different Wi-Fi network, such as your Mobile hotspot?
If it worked, try restarting your router and then connecting your device to the internet. See if it works.
If you are still experiencing issues, try these methods.
Method 1. Reset Microsoft Store cache.
Click Windows + R key, type wsreset.exe, and click Ok.
Wait for the Microsoft Store to appear automatically.
Install the apps.
Method 2. Run the network reset commands.
Open the CMD (Administrator) Window. Run these commands one by one and click Enter for each command.
netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns
Once done, restart the Microsoft Store and install the apps.
Method 3. Reset Internet Explorer settings.
Click Windows + R key, type inetcpl.cpl, and click ok.
In the Advanced tab, select 'Restore advanced settings'.
Click apply and ok.
Open the Microsoft Store and install the apps.
Let me know if you still need more help.