Had the same issue on Ubuntu 18.04.5 LTS with hplip coming from Ubuntu repos.
Solved by installing hplip-3.21.2 from HP website. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to hplip in Ubuntu. https://bugs.launchpad.net/bugs/1697958 Title: HPLIP cannot detect printers in your network Status in HPLIP: New Status in hplip package in Ubuntu: Confirmed Bug description: On a fresh install of Kubuntu 17.04 I cannot add a network printer though the HPLIP Toolbox. I get an error message that says "HPLIP cannot detect printers in your network. This may be due to existing firewall settings blocking the required ports. When you are in a trusted network environment, you may open the ports for network services like mdns and slp in the firewall. For detailed steps follow the link. http://hplipopensource.com/node/374"; However snmpwalk finds the printer perfectly fine $ snmpwalk -Os -c public -v 1 192.168.1.21 1.3.6.1.4.1.11.2.3.9.1.1.7.0 iso.3.6.1.4.1.11.2.3.9.1.1.7.0 = STRING: "MFG:Hewlett-Packard;CMD:PJL,PML,PCLXL,URP,PCL,PDF,POSTSCRIPT;MDL:HP LaserJet 200 colorMFP M276nw;CLS:PRINTER;DES:Hewlett-Packard LaserJet 200 colorMFP M276nw;MEM:MEM=230MB;COMMENT:RES=600x8;LEDMDIS:USB#ff#04#01;CID:HPLJPDLV1;" Other systems that were upgraded to 17.04 can still access and detect the printer. What I expect to happen: 1. Open HPLIP Toolbox 2. Add a network printer 3. Printer is detected What happened instead 1. Open HPLIP Toolbox 2. Add a network printer 3. No printers found ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: hplip-gui 3.16.11+repack0-2 ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15 Uname: Linux 4.10.0-22-generic x86_64 ApportVersion: 2.20.4-0ubuntu4.1 Architecture: amd64 CurrentDesktop: KDE Date: Wed Jun 14 11:23:50 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2017-06-09 (4 days ago) InstallationMedia: Kubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) Lpstat: device for Hewlett-Packard-HP-LaserJet-P1505: implicitclass:Hewlett-Packard-HP-LaserJet-P1505 device for HP-LaserJet-200-colorMFP-M276nw: ipp://NPI62B4B3.local:631/ipp/print Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0aa7 Intel Corp. Bus 001 Device 002: ID 1bcf:2c87 Sunplus Innovation Technology Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP Pavilion Notebook PackageArchitecture: all Papersize: letter PpdFiles: Error: command ['fgrep', '-H', '*NickName', '/etc/cups/ppd/HP-LaserJet-200-colorMFP-M276nw.ppd', '/etc/cups/ppd/Hewlett-Packard-HP-LaserJet-P1505.ppd'] failed with exit code 2: grep: /etc/cups/ppd/HP-LaserJet-200-colorMFP-M276nw.ppd: Permission denied grep: /etc/cups/ppd/Hewlett-Packard-HP-LaserJet-P1505.ppd: Permission denied ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-22-generic.efi.signed root=UUID=e56bcb4e-c73e-4581-9f09-4ef3fe063e74 ro quiet splash vt.handoff=7 SourcePackage: hplip UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/07/2017 dmi.bios.vendor: Insyde dmi.bios.version: F.36 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 8215 dmi.board.vendor: HP dmi.board.version: 83.15 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.36:bd04/07/2017:svnHP:pnHPPavilionNotebook:pvrType1ProductConfigId:rvnHP:rn8215:rvr83.15:cvnHP:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion Notebook dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/1697958/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
