How to solve "lookup failed" error on my Windows PC?

Please set your DNS to Google Public DNS Server 8.8.8.8 to fix the issue.

Here is how to change DNS on your Windows PC:

1. Open Control Panel.
2. Click on Network and Internet.
3. Click on Network and Sharing Center.

4. On the left pane, click on Change adapter settings.

5. Right-click the network interface connected to the internet (Ethernet or Wireless Network, e.g.), and select Properties.

6. Select Internet Protocol Version 4 (TCP/IPv4) from the list.

7. Click the Properties button.

8. Click the Use the following DNS server addresses option.

9. Type 8.8.8.8 as the Preferred DNS server address.

10. Click OK.