4G LTE Router 4G WiFi Router Black Up to 10 Users Stable Easy Connection USB Plug and Play for Hotspot Micro SIM Card Phone PC

After each new power-on, it needs to be reconfigured, I do not recommend it.

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I received the product successfully

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Good.

works both via USB and WiFi connections on Kyivstar, speed is 14-18, basically normal.

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The 4G LTE frequencies supported by this device are only B1, B3, and B5. KT (most advantageous): B3 (main network), B8 (secondary network) * This device fully supports KT's main network, B3, so the signal is strong as soon as you insert the SIM card. SKT (may not explode depending on the region): B5 (main network), B1/B3 (secondary network) * SKT is the main network with B5 installed across the country. *LGU+ (worst compatibility): B5 (main network), B1/B7 (secondary network) * LGU+ operates on a 100% LTE network (VoLTE) unlike other carriers, and carrier certification is challenging. Similarly, if the B5 main network does not match well or the device registration (IMEI) is not completed, it will completely reject the signal. # Missing manual APN (access point name) settings The KT SIM card may have been automatically recognized by the device, but there is a high probability that SKT or LGU+ will not be used by the device unless you manually enter the address (APN settings). Ways to resolve the issue (SKT / LGU+ save) 1. Access the router settings page: After turning on the device, connect to the router's Wi-Fi using your smartphone. The administrator address written on the back of the device or in the manual (192.168.100.1) is used to connect to the internet window. 2. Navigate to the APN settings menu: Find the network settings or APN settings menu. 3. Add a new APN: Enter the values below according to the SIM card you want to use, save (apply), and then reboot the device. | Telecommunications company | Name | APN value | SKT (Smartphone SIM Card) | SKT LTE | lte.sktelecom.com | SKT (Data Sharing) | SKT LTE modem | ltetab.sktelecom.com | LGU+ (Common) | LGU+ LTE | internet.lguplus.co.kr | The SK Alteo phone can be used effectively by changing the SIM card settings.

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At first, I didn't know if the charger was broken, so I kept switching between red and green lights, which made me suspect that the device was defective. But after changing the charger (5V), it has been working continuously and the internet connection is very good. I don't know if it's because I only connected the CCTV, but it might be slow. I think it will be fine for use in a shed, but I'm a little worried that it might be weak in hot or cold environments. It's cost-effective, so I'm thinking of buying another one as a backup. If I'm worried about maintenance, I probably won't be able to use it, right?

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