When the primary IP of a cloud server's VPC network is unable to establish remote communication due to blocking or other reasons, you can choose to switch the primary IP to enable remote login. If additional IP addresses are available, you can switch the IP address in the control panel. If there are no additional IP addresses, you can opt to upgrade or downgrade the server in the backend to purchase and add additional IPs.
1. Login to the control panel. Please refer to the login instructions for the login method.:How to log in to the public cloud control panel
2. Click the "Modify VPC Network" button in the "Network Management" section to switch the primary IP address within the VPC network.