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Cygwin X Server error: xdmcp fatal error session failed session 23 failed for display

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Operating Systems Solaris Cygwin X Server error: xdmcp fatal error session failed session 23 failed for display
# 1  
Old 12-01-2010
Data Cygwin X Server error: xdmcp fatal error session failed session 23 failed for display
Hi,

i got the following error when i tried to access the cygwin x server from a windows XP PC.
"xdmcp fatal error session failed session 23 failed for display"

Alternatively, when i tried to access the same Cygwin X Server from another windows XP PC which is on a different LAN (different country actually) it connects and works perfectly. I am not able to debug as to y it doesnt connect from one of my PCs. Please help me in this regard. Thanks in advance.
Harish.
# 2  
Old 12-01-2010
Maybe there is a one way firewall in the middle blocking the xdmcp as client from connecting to the X Server on this PC, or the X Server port is wrong (when up one for a conflict?), or that PC's X Server is not up and running.
# 3  
Old 12-01-2010
HI DGPickett, i tried the firewall thing by adding the ports as exceptions so that the firewall doesnt block them...still couldnt get the X server running...but i cant understand what u mean by "PC's X Server is not up and running"...can u pls explain on this????

Thanks in advance
Harish.
# 4  
Old 12-02-2010
You can test the firewall and PC X assuming :0.0 by going to the UNIX host and trying:
Code:
 
telnet ip_or_name_of_PC 6000

Now, if it cannot connect, you can go to the PC and try the same thing. If it works, it is firewall somewhere, and if not, the PC X service is not working. Also, try an Xterm or other X app on the PC to make sure X does more than connect there.
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