Commands

Failed to obtain an IP address When a device fails to obtain an IP address, it cannot communicate with other devices on the network. This issue often manifests as a “Failed to obtain IP address” error. Causes and solutions DHCP server issues: Ensure the DHCP server is running and reachable. Restarting the DHCP service can resolve temporary glitches. To check the status of the DHCP server, you have to open the Services console. Open the run dialog box, type “services.msc” and press Enter. Locate the DHCP Server and make sure the status is “Running”. If it’s not, right-click on the server and select Start. To restart the server, follow the exact same process but select Restart after right-clicking on the service. There are various reasons why you may not see the DHCP server in the list. The service might not be installed on the machine, it might be disabled, it may corrupted, the operating system might not support the role, network issues might prevent it from appearing if it is hosted on a different machine, or you may have insufficient permissions to view or manage the DHCP service. ...

Unable to resolve domain names A common DNS issue is the inability to resolve domain names, which can result in websites being inaccessible despite an active Internet connection. Causes and solutions Incorrect DNS server configuration: Ensure the DNS server addresses are correctly configured on client devices. To do so open a command prompt on the client device. Type nslookup and press Enter. Verify that the DNS server listed in the output is the correct one and is resolving domain names correctly. Note you have to enter the specific domain details, not type just “domain”. For example, you could use nslookup google.com. ...