Network troubleshooting
Changed router DNS, but one application behaves differently: check which resolver path it uses
A router DNS change does not prove that every application immediately uses that resolver.
Read the guideGuides & directories
Network troubleshooting journal articles — page 4
Choose a practical article about network troubleshooting. These topic indexes complement the six-article journal pages.
32 guides · Page 4 of 6
Network troubleshooting
After a power interruption, restore the network in an observable order
A power interruption can affect the provider connection, router, switches, mesh points and television together.
Read the guideNetwork troubleshooting
One hostname has several addresses: preserve the failing connection, not just one lookup
A hostname can offer more than one address.
Read the guideNetwork troubleshooting
“Connection refused” and “timed out” are different clues
A connection-refused message and a timeout describe different observations.
Read the guideNetwork troubleshooting
Playback changed after a router reconnect: the outward address is only one variable
A router reconnect can change the outward address and restart several network states.
Read the guideNetwork troubleshooting
An old IPv6 assignment remains after a router change: check current configuration
An IPv6 address retained from an earlier network may not describe the new router's usable external path.
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