I have a cups-based printing infrastructure that's been working mostly fine for quite some time; there are a couple hundred clients (mostly F22 and some Apple machines) and twenty or so printers. Currently the server is an F22 machine (cups-2.0.3-1.fc22.x86_64) and it is the only machine to talk to the networked printers. The clients get their printer lists via whatever magic cups uses to do that without configuration. Recently I updated my main desktop to F23 and have started running into some issues with jobs simply not printing. If I send a job. it will simply become stuck in the queue on the local machine; lpstat -t will show: printer rm660 is idle. enabled since Mon 14 Dec 2015 11:50:14 AM CST No suitable destination host found by cups-browsed. If I restart cups-browsed and then immediately print the job again, it will print. I can also "release" the job via the cups web interface. (Haven't managed to figure out how to do that from the command line yet.) If I wait a relatively small amount of time (about a minute, it seems) then I miss the window where I can send a job. The client is running: cups-2.1.2-1.fc23.x86_64 cups-client-2.1.2-1.fc23.x86_64 cups-libs-2.1.2-1.fc23.x86_64 cups-pk-helper-0.2.5-6.fc23.x86_64 cups-filesystem-2.1.2-1.fc23.noarch cups-filters-1.2.0-1.fc23.x86_64 cups-browsed doesn't appear to have logged anything; at least the only journal entries I see are from systemctl restarting it. cupsd does log some interesting things, though: Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: [Client 1851] Returning IPP client-error-bad-request for CUPS-Add-Modify-Printer (ipp://localhost:631/printers/rm660) from localhost Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - root "POST /admin/ HTTP/1.1" 200 386 CUPS-Add-Modify-Printer client-error-bad-request Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - - "POST /admin/ HTTP/1.1" 401 121 Resume-Printer successful-ok Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - root "POST /admin/ HTTP/1.1" 200 121 Resume-Printer successful-ok Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - - "POST /admin/ HTTP/1.1" 401 392 CUPS-Add-Modify-Printer successful-ok Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: [Client 1857] Returning IPP client-error-bad-request for CUPS-Add-Modify-Printer (ipp://localhost:631/printers/rm669) from localhost Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - root "POST /admin/ HTTP/1.1" 200 392 CUPS-Add-Modify-Printer client-error-bad-request Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - - "POST /admin/ HTTP/1.1" 401 121 Resume-Printer successful-ok Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - root "POST /admin/ HTTP/1.1" 200 121 Resume-Printer successful-ok Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - - "POST /admin/ HTTP/1.1" 401 387 CUPS-Add-Modify-Printer successful-ok Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: [Client 1863] Returning IPP client-error-bad-request for CUPS-Add-Modify-Printer (ipp://localhost:631/printers/rm683) from localhost Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - root "POST /admin/ HTTP/1.1" 200 387 CUPS-Add-Modify-Printer client-error-bad-request Dec 14 11:55:13 epithumia.math.uh.edu cupsd[9907]: REQUEST localhost - - "POST /admin/ HTTP/1.1" 401 389 CUPS-Add-Modify-Printer successful-ok (repeated for each printer shared by the server)
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