Console port connection problem

[Lollo89]

Hi

I'm having problems connecting to the console port of a CISCO ISR4321, both USB and RJ45.
The COM port is recognized by Putty but when opening the terminal I am not allowed to enter any input, I have the classic black screen with the green cursor stopped. I am sure that my console cables work since I have tested them with other CISCO equipment with positive results. On Putty I have also tried changing the speed and other parameters but to no avail, what could the problem be due to?

Thanks

Regards

Lorenzo

[Leo Laohoo]

Console into the router and reboot. 

Post the entire boot-up process. 

[Flavio Miranda]

@Lollo89 

Get a cable for USB mini-Type B and alternativelly use that Port for testing. 

[Lollo89]

Hi Flavio

I also tested the mini-Type B USB cable but with the same result.

[Flavio Miranda]

So, probably, the router have some problem. 

[Lollo89]

I think so, too. I also tried another new ISR4321 and had the same problem with both mini USB and RJ45. Instead trying with other CISCO equipment I can get in and manage the configurations.

[Flavio Miranda]

Those 2 4321 are Brand New devices?

If so, maybe It would be recommend RMA

[Lollo89]

Only one of the two devices is new

[Flavio Miranda]

Humm...well, I would suspect the PC, driver cable etc because two devices, one new and the other used, with the same problem, not usuall.

 Unfortunatelly, access different device is not a perfect prove because some device is different. I face issue with cable connecting to Access Points while I could connect to switch just fine.

 Try to console into the 4321, reload it, and share the logs here. Let´s see if something interesting shows up.