I am not able to access the web-based GUI but can login into my Zonedirector 1100 via SSH (Putty)
I have tried different browsers (Chrome, Firefox, Edge) but did not work, and here are the screen captures:
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I also tried to reset the certificate and re-generate the private key using the following CLI commands:
Ruckus> en
Ruckus# config
Ruckus (config)# certificate
Ruckus (config-certificate)# restore
Ruckus (config-certificate)# re-generate-private-key 1024
When I used PUTTY to connect to ZD1100, I got the following message:

It seems that it has to do with the SSL certificate?
Anyone have any suggestions? Many thanks