Topic: PAServer on Linux

Delivered on Ubuntu 17.10 PAServer. Launched it. I try to cling from studio. In 9 from 10 times I receive an error
[quote =] Connection to ' ubuntu-desktop ' on port 64211 failed.
Please make sure that ' Platform Assistant Server ' is running on the host machine and is configured to use port 64211

1 from 10 times it is connected. The telnet on port 64211 clings without problems. Where to dig?
Yours faithfully, Vasilisk