the IPP request failed for an unknown reason...

[Dapper Dan]

I've tried to locate an answer but keep coming up empty. I have a HP printer locally connected to a FC3 box. It is configured and runs perfectly. On the FC box, the cups daemon is running and nmap says port 631 is open.

When I connect to this printer from my Slackware 10.1 box on the same LAN, using http://localhost:631 in Firefox, it finds the remote printer on the cups network at the FC box and I'm able to print a test page from the Slackware box. Port 631 is open on the Slackware box, and guarddog is not blocking the port. Since I can print a test page from the cups configurator, everything should work right?

I can't print any documents from Slackware. I tried configuring with kprinter, and when it tries to connect to the cups network, I get...

An error occured while retrieving the printer list:
Connection to CUPS server failed. Check that the CUPS server is correctly installed an running. Error: the IPP request failed for an unknown reason.

I've tried everything I can think of but nothing seems to correct this. What am I doing wrong? Any help appreciated. Thanks...

[Dapper Dan]

Everything is working now. Since the printer was originally installed as a local printer to the Slackware box, I think it was confused. Even though I pointed it to the FC box and port 631, it was looking for it at that address but on the Slackware box.

I created and configured a new printer throught the cups utility and everything works. Thanks for reading.

[alirezan1]

I have the same problem and can't seem to be able to figure out what's wrong. I am using Mandriva 2007.

Here's my cupsd.conf file:

Classification none

DefaultCharset UTF-8
DefaultLanguage en
Printcap /etc/printcap


PrintcapFormat BSD

RemoteRoot remroot

SystemGroup lpadmin root
ServerCertificate /etc/cups/ssl/server.crt

ServerKey /etc/cups/ssl/server.key
<Location />
Encryption IfRequested
Satisfy All
Order allow,deny
Allow @LOCAL
Allow localhost
</Location>
<Location /admin>
Encryption Required
Satisfy All
Order allow,deny
Allow @LOCAL
Allow localhost
</Location>
<Location /admin/conf>
AuthType Basic
Require user @SYSTEM
Encryption IfRequested
Satisfy All
Order allow,deny
Allow @LOCAL
Allow localhost
</Location>

HostnameLookups Off

KeepAlive On
KeepAliveTimeout 60

MaxClients 100
MaxRequestSize 0m


Timeout 300
Listen *:631
Listen /var/run/cups/cups.sock

AccessLog /var/log/cups/access_log

ErrorLog /var/log/cups/error_log

PageLog /var/log/cups/page_log

MaxLogSize 1m

LogLevel debug2


PreserveJobHistory On

PreserveJobFiles Off
AutoPurgeJobs No


MaxJobs 0
MaxJobsPerPrinter 0

MaxJobsPerUser 0

User lp

Group sys

RIPCache 8m


FilterLimit 0


DataDir /usr/share/cups
DocumentRoot /usr/share/cups/doc

RequestRoot /var/spool/cups

ServerBin /usr/lib/cups


ServerRoot /etc/cups

TempDir /var/spool/cups/tmp


Browsing On
BrowseProtocols CUPS


BrowsePort 631


BrowseInterval 30

BrowseTimeout 300

BrowseAddress @LOCAL
BrowseAllow @LOCAL


BrowseOrder allow,deny

ImplicitClasses On


ImplicitAnyClasses On

HideImplicitMembers Yes

BrowseShortNames Yes

# Unknown
defaultauthtype Basic
<policy default>
<limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job>
require user @OWNER @SYSTEM
order deny,allow
</limit>
<limit Pause-Printer Resume-Printer Set-Printer-Attributes Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Add-Printer CUPS-Delete-Printer CUPS-Add-Class CUPS-Delete-Class CUPS-Accept-Jobs CUPS-Reject-Jobs CUPS-Set-Default>
authtype Basic
require user @SYSTEM
order deny,allow
</limit>
<limit Cancel-Job CUPS-Authenticate-Job>
require user @OWNER @SYSTEM
order deny,allow
</limit>
<limit All>
order deny,allow
</limit>
</policy>

Here's my error log file:
http://www.arnit.net/error_log.txt


Somebody please help me!

Thanks

Ali

[alirezan1]

I finally managed to get it working. Here's what I did:

I reinstalled CUPS using URPMI. I still got the error message. I added a local printer and then there was no error message but the problem was, I couldn't print using that printer. So, I removed it and I started getting the same error message!!!

So this time, I added a remote SMB printer, shared on Windows Machine. I couldn't open the local network browser, so I added the location and printer name manually and it worked!

Thanks

Ali