Grey Blocks appearing on Console Session Cisco UCS FI 6324

When Serially consoling into a Cisco Switch I got the following grey blocks 

I’ve tried the following things:

  • New laptop
  • Baud Rates
  • Encoding
  • New cable
  • New adapter
  • Tera Term instead of putty
  • Verified the cable works with another switch


Use a laptop with a Serial Port built in or Docking station as it seems to be a USB driver issue


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Tags: Cisco UCS FI 6324, console, grey blocks, putty, rectangles, serial, spaces, tera term, usb to serial

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