Cannot open console

[digitaldomus]

Trying to open the console on any VM of a vmware esxi 6.7 host (either web of VMRC, it's the same), I get this error

You have reached the maximum number of connected consoles: 40. Please contact your administrator

But I'm sure no one has an open console.

How can this be fixed ?

[NicolasAlauzet]

Some people with similar issues were able to connect with other browsers or removing cookies, etc of the browser.

Can you try that? New browser or incognito mode in the one you have.

Other thing, are you in the same network than the esxi? Ports may be blocked

Port	Purpose	Traffic Type
443 (Default)	HTTPS access vSphere Client access to vCenter Server vSphere Client access to ESXi hosts vSphere Client access to vSphere Update Manager	Incoming TCP to the ESXi host
902 (Default)	vSphere Client access to virtual machine consoles	Incoming TCP to the ESXi host, outgoing TCP from the ESXi host, outgoing UDP from the ESXi host

[digitaldomus]

I've tried from multiple computers and multiple browser, all on the same local network, the error is always the same.