symantec endpoint protection 11 management server offline

Microsoft Windows Vista 32-bit 64-bit, microsoft Windows 2003 32-bit 64-bit, microsoft Windows XP 32-bit 64-bit.
Windows Server 2008 (32-bit, 64-bit; R2, RTM, SP1 and SP2).
On the clients themselves, help troubleshooting server shows as offline.Windows 10 (32-bit, 64-bit windows Server 2003 (32-bit, 64-bit; R2, SP1 or later).Red Hat Enterprise Linux 32-bit, suSE Linux Enterprise (Server/Desktop) 32-bit, novell Open Enterprise Server 32-bit.Windows Server 2012, windows Server 2012 R2, windows Server 2012 R2 update for April, 2014.I've already tried replacing the sylink.Attempted to install the client on this server and it fails.Microsoft Windows 2000 (SP3 and later) 32-bit 400 MHz Intel Pentium yeh aashiqui bindass episodes III (1 GHz for Windows Vista) 256 MB of RAM 600 MB free space to run the client installation.Windows Small Business Server 2008 (64-bit).Windows Server 2012 R2 update for August, 2014.Ok Start Type Demand Start Demand Start Ok Log On As LocalSystem LocalSystem Warning Symantec Endpoint Protection.0, MR4 (11.0.4000.2295).
After upgrading the console from.x.1.5, my clients are showing as offline under the health state except for 1 machine.
Windows.1 update for August, 2014 (32-bit, 64-bit).Super VGA (1,024x76 or higher-resolution video adapter and monitor.Windows 8 (32-bit, 64-bit windows.1 (32-bit, 64-bit windows.1 Update 1 (32-bit, 64-bit).Windows 8 (32-bit, 64-bit windows.1 (32-bit, 64-bit windows.1 update for April, 2014 (32-bit, 64-bit).Microsoft Internet Explorer 11, mozilla Firefox.x through.x, google Chrome.x.On sepm, under admin management server, status is displayed as offline.