There are a few possible reasons why you might not be able to ping a server by its name, but can ping it by its IP address:
DNS issues: If the server's name is not being resolved to its IP address, then you will not be able to ping the server by name. This could be due to a problem with the DNS server being used, or with the DNS configuration on the server itself.
Network configuration issues: If the server is on a different network or subnet than the device you are trying to ping it from, you may need to configure your device to use a router or gateway that can reach the server's network.
Firewall or security rules: The server may have a firewall or security rules in place that are blocking ping requests. You may need to check the server's firewall or security settings to see if ping requests are being allowed.
Hardware or networking issues: There may be issues with the server's networking hardware or configuration that are preventing it from being pinged. This could include problems with the server's network interface card (NIC), cables, or router.
To troubleshoot the issue, you can try the following steps:
Check the DNS configuration: Make sure that the server's name is properly registered with a DNS server, and that the DNS server being used by your device is able to resolve the server's name to its IP address.
Check the network configuration: Make sure that your device is properly configured to use a router or gateway that can reach the server's network.
Check the firewall and security settings: Check the server's firewall and security settings to make sure that ping requests are being allowed.
Check the networking hardware and configuration: Check the server's networking hardware and configuration to make sure that there are no issues with the NIC, cables, or router.
If you are still unable to ping the server by name after trying these steps, it may be helpful to seek the assistance of a network administrator or a support forum for further guidance.