客戶端計算機無法與服務器進行連接，客戶機之間Ping時斷時續，檢查集線器發現「COL」指示燈長亮或不斷閃爍，到底是怎麼回事?
故障分析：
「COL」指示燈用於指示網絡中的碰撞和衝突情況。
當「COL」指示燈不停閃爍，表明衝突發生;當「COL」燈長亮則表示有大量衝突發生。
導致這種情況可能是集線器出現故障或網卡出現故障。通常情況下，網卡出現故障可能性較小。
故障解決：
更換集線器，網絡恢復正常。
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What is going on when the "COL" indicator is on or blinking continuously?
The client computer cannot connect to the server, and the ping between the clients is intermittent. Check that the hub finds that the "COL" indicator is on or blinking continuously. What is going on?
Failure analysis:
The "COL" indicator is used to indicate collisions and collisions in the network.
When the “COL” indicator flashes continuously, it indicates that a collision has occurred; when the “COL” light is on, it indicates that a large number of conflicts have occurred.
This can be caused by a hub failure or a network card failure. Under normal circumstances, the network card is less likely to malfunction.
Troubleshooting:
Replace the hub and the network is back to normal.
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