Troubleshooting
DNS Drift: Why Your Router, Browser, VPN, and Phone Use Different Resolvers
08/22/2026
A detailed DNS audit for home networks and homelabs where router DHCP, browser Secure DNS, VPN clients, IPv6, and mobile Private DNS do not agree.
Why Your Gigabit Ethernet Is Stuck at 100 Mbps
08/03/2026
A practical troubleshooting flow for gigabit Ethernet links negotiating at 100 Mbps because of cables, ports, terminations, or hidden old devices.
DHCP vs DNS: What Breaks When Each One Fails
07/15/2026
DHCP gives devices network settings. DNS turns names into addresses. Knowing the difference fixes a huge number of home and office network problems.