cannot connect to Mikrotik rb433L after routeros upgrade

Hi there.

Yesterday i put the rb433L in the plastic encloser and also connected two mini pci cards to it.
I noticed that the wlan cards was not picking up in winbox to I download the lastest ROS and rebooted the router. But after doing so I was unable to connect to it anyway possible. Even tried doing mac scan.

I have removed the rb433L and tested it. After it boots up and make the beep sound then only LD301(think the power led) stays on. The LED on the connected switch does show activity but I cannot ping.

Few things that I tried was to try the reset hole. But so far no luck.

Try to initiate Netinstall mode, by holding the reset button for longer than 20 seconds during boot time. Then run Netinstall program and restore RouterOS v5.20 on it.

Not sure what happened to your upgrade, but as it doesn’t have a serial port, there is no way to find out now.

Should the ethetner leds be on/blinking when in pxe mode? When i power on the router then all leds go on and then back off and then i hear beep and nothing else happens. I tried pxe mode amd the led does blink for 10 seconds but then go off again and then nothing happens.

I wil find out from the supplier if i still have warranty on the device.

EDIT:

Yeah sorry my bad. I had to setup netboot option. Now my routerboard is working and has wifi support. Thank you so much. PS: I tried to downgrade router to ros4.10 and that was why it failed. Has ros5.20 on it now and it is working.

Bye