The router does not start. D-link DWR-116 + modem Huawei e3372.

I have a big problem with my D-link DWR-116 router + USB modem Huawei e3372 from Play - when I have USB connected and connected to the power supply, 4 LEDs on the cable on the back light up - after a while they go out and that's it. The router does not work at all. Once it was under warranty and repaired (they replaced the USB modem) and I still have the same problem. Do you have any idea how to fix it?

And what does USB (what?) Replacement have with DWR-116 and its malfunction? If you do not connect anything after LAN, these LEDs next to these connectors will not be lit. Start DWR-116 with this modem. Log in to this DWR-116 via LAN cable to its default address and show the tabs from the settings on this router. E.g. device information. The choice of equipment in Play is poor, the set is worth PLN 150 for me, you will pay 3x as much in the subscription. How does Play internet work when you connect the modem directly to a USB on your computer? Where are you from?

Usb-huawei e 3372. When everything connects, 4 diodes from the internet inputs light up for a moment and after a while they go out and no sign from the router that works. As for the 192.168.2.1 input then the site does not work. I am from the Kuyavian-Pomeranian region.

Are no lights on the router panel illuminated? How does the internet work on the E3372 modem itself? Two Play BTSs operate in Znin, both on LTE1800 and LTE2100, Szpitalna 20 and Mickiewicza 41. Default address 192.168.2.1 on the router sticker? Have you reset it to factory settings?

When connecting the router to the power supply, 4 LEDs on the lantern light up, but this is only for a maximum of 3s. So the default address on the back of the router 192.168.2.1. The modem itself does not work now but about 2h ago it worked normally: / When connecting the modem to the router in 3 min is getting very hot.