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[china.ruts]

Boa tarde senhores , 

Poderiam auxiliar no caso abaixo , estava utilizando w10 depois de realizar o down grade para w7 estou com esse problema ao acessar o packet tracer , alguém sabe me dizer do que se trata , segue em anexo ..

Obrigado 

[Pedroxh]

Olá

Existe um workaround conforme esse post

https://community.cisco.com/t5/switching/packet-tracer-login-failing/td-p/4037999

1. Start an existing PT-Lab (any, doesn't matter)

2. After the error message, close that window

3. Now an "authentication Failed" windows appears. Just click OK

4. On the next windows "Exit -- Packet Tracer" click cancel

5. Voilá. You can work in this lab or just create a new one!"

"

[Fabricio Mendes]

Soluction:
Great news I have found the issue. Issue is with QtWebEngine that Packet Tracer is using. It looks that it need some libraries from DirectX. When I installed 'DirectX End-User Runtime Web Installer' (maybe I had some old version) everything start to work.

download of (DirectX End-User Runtime Web Installer) link: https://www.microsoft.com/pt-br/download/details.aspx?id=35

[Fabricio Mendes]

My operating system is windows 8
Soluction:
Great news I have found the issue. Issue is with QtWebEngine that Packet Tracer is using. It looks that it need some libraries from DirectX. When I installed 'DirectX End-User Runtime Web Installer' (maybe I had some old version) everything start to work.

download of (DirectX End-User Runtime Web Installer) link: https://www.microsoft.com/pt-br/download/details.aspx?id=35

restart your pc and be happy.