https://community.hpe.com/t5/operating-system-hp-ux/xdmcp-timeout/m-p/3362221#M871603 All clients are timing out today when trying to establish a CDE session on an Itanium machine (11.23). AFAIK, this issue is new today (certain users connect this way). <BR /><BR />I've done extensive research on this issue so far, and cannot seem to figure it out. I've perused the previous issues here where the Reflection X (RX21012) error has occurred, and none of the solutions have helped.<BR /><BR />1. dtlogin is running<BR />2. hostnames are resolvable forward and reverse on client and server<BR />3. tcpdump shows request and response on udp port 177 on server running dtlogin<BR />4. server can connect to client on tcp port 6000<BR />5. perl test scripts can send and receive data on udp port 177 between client and server<BR />6. Xerrors file in /var/dt shows nothing<BR />7. Syslog shows nothing<BR /><BR />I would welcome any assistance. Thanks. Fri, 20 Aug 2004 15:10:14 GMT Clay Jones_2 2004-08-20T15:10:14Z https://community.hpe.com/t5/operating-system-hp-ux/xdmcp-timeout/m-p/3362221#M871603 All clients are timing out today when trying to establish a CDE session on an Itanium machine (11.23). AFAIK, this issue is new today (certain users connect this way). <BR /><BR />I've done extensive research on this issue so far, and cannot seem to figure it out. I've perused the previous issues here where the Reflection X (RX21012) error has occurred, and none of the solutions have helped.<BR /><BR />1. dtlogin is running<BR />2. hostnames are resolvable forward and reverse on client and server<BR />3. tcpdump shows request and response on udp port 177 on server running dtlogin<BR />4. server can connect to client on tcp port 6000<BR />5. perl test scripts can send and receive data on udp port 177 between client and server<BR />6. Xerrors file in /var/dt shows nothing<BR />7. Syslog shows nothing<BR /><BR />I would welcome any assistance. Thanks. Fri, 20 Aug 2004 15:10:14 GMT https://community.hpe.com/t5/operating-system-hp-ux/xdmcp-timeout/m-p/3362221#M871603 Clay Jones_2 2004-08-20T15:10:14Z https://community.hpe.com/t5/operating-system-hp-ux/xdmcp-timeout/m-p/3362222#M871604 Hi,<BR /><BR />Did you try reverse lookup on hostname and ip address ?<BR /><BR />Regards,<BR />Robert-Jan Fri, 20 Aug 2004 15:21:16 GMT https://community.hpe.com/t5/operating-system-hp-ux/xdmcp-timeout/m-p/3362222#M871604 Robert-Jan Goossens 2004-08-20T15:21:16Z https://community.hpe.com/t5/operating-system-hp-ux/xdmcp-timeout/m-p/3362223#M871605 Thanks for your response. I did do forward and reverse lookups on both machines (item 2 above), no problems.<BR /><BR /> Fri, 20 Aug 2004 15:24:08 GMT https://community.hpe.com/t5/operating-system-hp-ux/xdmcp-timeout/m-p/3362223#M871605 Clay Jones_2 2004-08-20T15:24:08Z