A user reports intermittent periods in which the workstation can access shared folders on the local network but cannot open external websites or cloud applications. No other users are affected, and the workstation is configured to obtain its TCP/IP settings automatically. Which initial troubleshooting step should the technician perform?
Use ipconfig /all to review the current DHCP-assigned address, gateway, and DNS servers, then renew the lease if needed.
Open the hosts file to check for incorrect static entries.
Add the required web domains to the endpoint security whitelist.
The first step should be to verify that the workstation is receiving a complete and correct DHCP configuration. Running ipconfig /all lets the technician confirm the IPv4 address, subnet mask, default gateway, and DNS server information. If any of these fields are missing or incorrect, an ipconfig /release followed by ipconfig /renew can request a fresh lease from the DHCP server. Incorrect DNS or gateway settings commonly cause loss of Internet access while local file sharing on the same subnet continues to work. Browser resets, security-suite whitelists, or hosts-file edits will not resolve a faulty network configuration.
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