Hidden cable faults: Damaged Ethernet cables can cause intermittent slowdowns, dropouts, and packet loss without visible signs. Quick and cheap fix: A $20 continuity tester checks wiring in seconds, ...
The DIAG mode allows you to perform a couple diagnostics: blink the switch port LEDs, read cable continuity, find crosstalk or impedance faults and play audio for a speaker test. In their PC software, ...
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