postRequest() error: 'Error: device proxy - cannot connect to web server'

[afalfaro]

We have had problems with the graphic interface of some 3250 units. The units respond to ping and allow CLI connectivity, however, when I try to load the graphic interface from a browser it indicates that it is not possible to load due to connectivity problems, which is not true since the unit does respond to ping and CLI.

We tried connecting directly to the FW through the management interface, that is, go to the DC and connect a cable from the management interface and connect it to a PC and still did not work.

The devices are managed from Panorama and the user is allowed to do a context switch from Panorama to the devices. When we try to do the context switch we get the following error postRequest() error: 'Error: device proxy - cannot connect to web server'.

[afalfaro · Accepted solution]

Since we do have access from the CLI, I logged in to the machine and ran the debug software restart process management-server command to restart the management server proccess. Once I executed the command the problem was solved.

It now loads the GUI from the browser and does the context switch in Panorama successfully.

Thank you.

[Z.Boussaid]

i applied the command but the firewall will not load. im still able to login using the CLI.

[afalfaro]

Kind regards

@Z.Boussaid 

What device is it? What version is the equipment on?