Could you please let us know if you are seeing any amber LED in front panel of the switch ? Please upload picture of front panel of the switch to this page so that we can note on the status of LED's of the switch in front panel.
Also I have mentioned link below of how to connect to switch using console cable. Please do run through below article and see if you can access the switch using console.
Could you please let us know the answers to the below queries to assist you better?
1. On your switch while it's plugged into the outlet, do you see any lights on? (Amber or green) Please let us know which lights are on. (Please refer to the below picture and share a picture of the same, showing the light status and the FULL Switch panel cable connections to the Switch ports)
2. Is your Internet Connection from the Internet Service Provider (ISP) stable and working? (You could check this by connecting to your local router Wi-Fi or from an ethernet cable from Router to a laptop/PC).
Please let us know the answers to ALL the above queries or let us know if you have any queries in this regard.
Thank you again for your patience and understanding.