Service category · 25 matching pages
Diagnose a computer that is connected to Wi-Fi or Ethernet but cannot reach the internet by separating local network access, DHCP, gateway, DNS, captive portal, VPN, security software, router, and provider problems.
Diagnose Ethernet that shows no usable wired connection by starting with physical link, then isolating cable, router or switch port, built-in adapter, USB or dock hardware, driver state, and only afterward DHCP or internet configuration.
Diagnose slow Wi-Fi isolated to one computer by comparing devices in the same location, checking adapter capability and link behavior, background traffic, VPNs, drivers, and whether the computer itself is slow.
Diagnose a computer that cannot join a known Wi-Fi network by separating network-wide trouble from radio, password, saved-profile, adapter, driver, security, and compatibility problems on one device.
Set up a newly purchased home Wi-Fi router around the customer's existing internet equipment, with deliberate security settings, sensible placement, and connection testing.