Media diagnostics · Primary-source explanation; examples are illustrative. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Read the local link scope
The Linux neighbour table binds protocol addresses to link layer addresses for hosts on the same link; for IPv4 it is also known as the ARP table. The ip neighbour manual documents several states rather than a simple connected or disconnected flag. When checking access to a local media receiver or gateway, retain the state name. Do not turn every unfamiliar label into an assertion that a remote programme server is down.
Compare the state meanings
The manual describes a reachable entry as valid until its reachability timeout, an incomplete entry as not yet resolved, and failed as unsuccessful validation after the probe limit. Stale is a different state. For an original diagnostic log, note a receiver entry before a permitted connection attempt and immediately afterwards. A transition gives more useful context than a screenshot of an old table entry without any accompanying action or time.
Inspect before replacing records
Use the show operation for an initial observation rather than adding a permanent neighbour binding or flushing tables. Record the interface as well as the local address, since identical looking private addresses on different links do not establish the same device. If the local neighbour cannot be resolved, investigate that link context before changing a remote player password. Successful neighbour resolution still does not prove that a discovery protocol, media service or authenticated application on that device is functioning.