為何網卡無法收到我路由器的5G Wi-Fi訊號?

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Recent updates may have expanded access to feature(s) discussed in this FAQ. Visit your product's support page, select the correct hardware version for your device, and check either the Datasheet or the firmware section for the latest improvements added to your product. Please note that product availability varies by region, and certain models may not be available in your region.
註:本文僅適用於雙頻無線網卡和雙頻無線路由器。
情境一:無法找到任何5G Wi-Fi訊號
電腦上的舊網卡不支援5G可能會影響TP-Link無線網卡的5G訊號廣播,若看不到5G Wi-Fi訊號,請照以下步驟停用舊網卡:
1.按下鍵盤上的Windows按鍵並點選搜尋或執行,在空格中輸入檢視網路連線。開啟檢視網路連線頁面,找到您的舊網卡並將其停用(若不知道哪張是您的舊網卡,請將TP-Link以外的網卡皆先停用)。
2.再次檢查Wi-Fi列表確認是否可以看到5G Wi-Fi訊號,如果看不到,請參考情境2。
情境二:看不到路由器的5G Wi-Fi訊號
若您使用的是舊網卡,請先將其停用來檢查其是否正常運作。
若未改善,請執行以下故障排除流程:
1. 登入您路由器的管理頁面至無線網路設定,將5G Wi-Fi的頻道變更為36,然後再次檢查Wi-Fi列表。在此以TP-Link路由器示範
它可能受到DFS影響,詳細資訊請參閱:https://wifinigel.blogspot.com/2018/05/the-5ghz-problem-for-wi-fi-networks-dfs.html
2. 若5G訊號仍然沒有出現,請聯繫TP-LInk技術支援團隊。
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