If you are suddenly unable to connect to the Internet, unplug it for a few seconds and plug it back in. This allows the modem to fully power down and initialize a fresh, stronger connection. After 15 seconds, reconnect the modem and wait at least two minutes before connecting to the Internet. If you experience problems connecting to the Internet, try powering down your entire network and restarting each device. This can help refresh both devices and ensure a stronger, lasting Internet connection.  Power off your computer and unplug your modem from its power source. Unplug your router from its power source. Then verify that both Ethernet cables and the coaxial cable are fastened securely to your devices. Reconnect the modem to its power source.  Then reconnect the router to its power source. Wait two minutes, then power on your computer. You should now be able to connect to the Internet. This helps to rule out problems with faulty equipment if you are unable to connect to the Internet. In most cases, frayed or faulty cables will prevent you from accessing the Internet. If you experience an interruption in service, contact your internet service provider. In some cases, temporary service interruptions may occur on behalf of local maintenance or outages. If you unable to establish a connection, check with your internet service provider to see if the router is compatible with the modem. Some modems may be outdated or incompatible with the routers offered by your ISP. If you are unable to connect to the Internet, contact your internet service providers to see if your modem requires any special configuration. Some cable modems must have their Ethernet ports configured before they can function properly with Internet routers.

How would you rephrase that briefly using Vietnamese?
Thử ngắt kết nối modem trong 15 giây. Thử khởi động lại cả modem và router. Thử đổi cáp Ethernet và cáp đồng trục khác. Kiểm tra xem khu vực của bạn có sự cố mất điện hay không. Kiểm tra xem modem có tương thích với router. Kiểm tra xem modem có cần được thiết lập cấu hình đặc biệt gì không.