PXE boot is failing from clients located in the same subnet. The client shows PXE-E32 TFTP Open Timeout and by enabling WDS tracing I can see the following sequence. WDS installed on Windows Server 2008, DHCP is located on another Server. Configured DHCP scope options 66 & 67 as recommended but still no joy. Can anyone explain what the highlighted error means? [90842][WDSPXE] [BINLSVC] Reply Sent - Request:10.9.56.107:68 Dst:10.9.56.107:68 Len:1024[5084] 13:14:40: [90842][WDSPXE] [BINLSVC] Processed 10.9.56.107:68, Action=1[6496] 13:14:40: [90842][WDSPXE] [WDSPXE][UDP][Ep:10.9.56.251:4011] Sent To:10.9.56.107:68 Len:1024[6496] 13:14:40: [UDPPorts] Allocated dynamic port 4011.[6496] 13:14:40: CUdpHandler::OpenEndpoint: Dynamic Port=4011[6496] 13:14:40: [WDSTFTP][UDP][Ep=4011] Registration Failed (rc=183)[6496] 13:14:40: [d:\longhorn\base\ntsetup\opktools\wds\wdssrv\server\src\ifhandler.cpp:238] Expression: , Win32 Error=183[6496] 13:14:42: [d:\longhorn\base\ntsetup\opktools\wds\wdssrv\server\src\udphandler.cpp:369] Expression: , Win32 Error=2[6496] 13:14:42: [WDSTFTP][UDP][Ep=0] Registration Failed (rc=2)[6496] 13:14:42: [d:\longhorn\base\ntsetup\opktools\wds\wdssrv\server\src\ifhandler.cpp:238] Expression: , Win32 Error=2[6496] 13:14:46: [d:\longhorn\base\ntsetup\opktools\wds\wdssrv\server\src\udphandler.cpp:369] Expression: , Win32 Error=2[6496] 13:14:46: [WDSTFTP][UDP][Ep=0] Registration Failed (rc=2)[6496] 13:14:46: [d:\longhorn\base\ntsetup\opktools\wds\wdssrv\server\src\ifhandler.cpp:238] Expression: , Win32 Error=2[6496] 13:14:52: [d:\longhorn\base\ntsetup\opktools\wds\wdssrv\server\src\udphandler.cpp:369] Expression: , Win32 Error=2[6496] 13:14:52: [WDSTFTP][UDP][Ep=0] Registration Failed (rc=2)[6496] 13:14:52: [d:\longhorn\base\ntsetup\opktools\wds\wdssrv\server\src\ifhandler.cpp:238] Expression: , Win32 Error=2

Hi, For this error, I suggest referring to the following two articles first: http://www.bootix.de/support/problems_solutions/pxe_e32_tftp_open_timeout.html http://support.citrix.com/article/CTX115331 Hope it helps. Tim Quan - MSFT

Tim,Thanks for replying. I had already referred to these articles but they did not really assist. Had to use Microsoft PSS as I had 2 classrooms that urgently needed imaging which was seen as Critical. The fix was to change the ports used by WDS from the default of 4011 - 4011 to 64411 to 65000. It looks like 4011 was being used by something else.Ian