Latest Blog
How to Fix Split-Tunnel Routes That Hide One Home NAS Subnet
A route-first recovery workflow for restoring one missing NAS subnet without sending all internet traffic through the VPN or breaking working subnets.
Why Does Dynamic DNS Update the Wrong Public Address?
A source-of-truth test for DDNS errors caused by private WAN addresses, wrong interfaces, proxy or VPN egress, address-family mismatch, and duplicate updaters.
Why Does Remote Access Break When the Home Public IP Address Changes?
A change-event test that separates an outdated DNS record from cached answers, fixed client endpoints, old firewall rules, persistent tunnels, and CGNAT.
Home Server Is Reachable but File Shares Time Out: What Should You Test?
A layer-by-layer SMB test that separates successful ping from blocked port 445, stopped services, wrong interfaces, stale sessions, authentication, and load.
Home NAS Speed Is Unstable: How to Check Duplex, Cable, and Port Errors
A controlled Ethernet test that separates duplex and physical-link faults from driver counters, switch behavior, storage limits, and SMB workload changes.
Why Does a Reverse Proxy Work by Domain but Fail by Local IP?
Shows why direct-IP requests bypass hostname routes and how to test Host headers, TLS SNI, default virtual hosts, local DNS, and backend address handling.
Can Split DNS Fix a Self-Hosted App That Fails Only Inside Your Home?
Explains when split DNS is the right fix for hairpin-NAT failures and when local proxy routing, TLS, app settings, or client DNS still need correction.
How to Tell Whether a Firewall or NAT Rule Is Blocking an Incoming Home Server Connection
An outside-in test sequence that separates a closed service from a host firewall, wrong NAT target, upstream NAT, protocol mismatch, or reply-path fault.
