Monday
Latest firmware.
The problem appeared after I decided to reboot the router by disconnecting it from the DC IN outlet and after that the power LED constantly blinks quickly, no manipulations such as holding the wps button for 20-30 seconds or more make it go into mode, for example, restoring the firmware (when the power indicator blinks slowly), and holding the reset button does not blink (I don’t know how long to hold it, but I held it for at least 30 seconds)
Has anyone encountered such a problem? What can you do considering that the reset and wps buttons do not help, how can you get into the web interface or is it no longer working (the router)?
Friday
I suspect the router is in Rescue/Firmware Restoration Mode. Have you tried flashing firmware using this mode? (Firmware may be corrupted).