This has suppressed the 'System policy prevents control of network connections' messages and temporarily fixed the keyring nag ( login.keyring gets re-created and sometimes fires the nag again) but hasn't enabled me to connect to an existing X session on B. (this is a message I sometimes got) in /usr/share/polkit-1/actions/:

System policy prevents control of network connections commented out the following value of allow_any of.(tried also versions w/ ResultAny=no and ResultInactive=no) created /etc/polkit-1/localauthority/50-local.d/50-allow-network-manager.pkla:Īction=.modify.system -control.Mv /home/j/.local/share/keyrings/login.keyring /home/j/.local/share/keyrings/ So it seems that something's preventing me from accessing the web over Nomachine, creating a new webless X session instead. If I open a web browser in the B session displayed only in A, the browser opens only in the existing X session on B (this is the only way I can interact w/ the X session there). Upon connecting, I lately also sometimes get warnings either about a keyring or not being allowed to control network, so I suspect a polkit issue. To my knowledge, I haven't done (installed, removed, changed, etc.) anything to deserve this. However, lately it always creates a new session on B while showing it on A only. The client machine A has always connected to an existing X session in the server machine B displaying it in both A and B. I've used Nomachine for years to connect my 2 Linux laptops.

Nomachine linux slow