How to diagnose a faulty uplink splitter

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First, check the physical connections, ensuring that all network cables are securely plugged into the appropriate ports on the splitter, modem, and connected devices. Next, examine the Ethernet splitter itself for any signs of damage or malfunction, such as loose ports or a faulty. I have two Catalyst 3570 switches, switch A and switch B, connected via GBICs in uplink ports. A faulty splitter can lead to a range of issues, including: Poor signal quality: A malfunctioning splitter can reduce the signal strength, resulting in poor picture quality, dropped channels, or complete signal loss. It is wrong to instinctively make decisions and change the splitter the moment you think something's wrong.

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