I am having the same issue. this is a linux client, and I am running BoincTasksJS under Linux. I have 5 computers in my network, 2 are Windows, 3 are Linux.
One Linux Machine is invisible to Boinctasks, However I can use the Boinc manager to remotely get access to the remote Boinc manager.
I can ping the node too.
One Linux Machine is invisible to Boinctasks, However I can use the Boinc manager to remotely get access to the remote Boinc manager.
I can ping the node too.