Seafile Client 6.0.3

The client 6.0.3 is installed, it starts stably and normally, after a while simply writes that “the server is not connected,” in the applet log file write the following:
[03/16/17 14:45:49] [api] network error for http : //10.204.20.99: 8000 / api2 / ping /: Connection closed
After restarting it starts normally, after a while everything repeats. Server 6.0.8. With what it can be connected?

hi
Try to update with version 6.0.4 to get started
https://www.seafile.com/en/download/

I updated the client to the latest version, but the problem remained, and now the truth in the log file other records:
[03/17/17 09:37:07][network detector] got a network failure
[03/17/17 09:37:07][api] network error for http://10...*:8000/api2/account/info/: Connection closed

[03/17/17 09:37:20][network detector] resetting the qt network access manager
[03/17/17 09:39:35][network detector] got a network failure
[03/17/17 09:39:35][api] network error for http://10...*:8000/api2/repos/: Connection closed
[03/17/17 09:40:05][network detector] resetting the qt network access manager
[03/17/17 09:40:23]QString::arg: Argument missing: &??? ??? ??? ???, Seafile
[03/17/17 09:44:06][network detector] got a network failure
Are there any other ideas on this issue?