HP Printer connection not possible

Hey, so I am running OpenWrt 19.07.5 for now with an Linksys EA8500, but can't get my printer (HP OfficeJet Pro 8720) to work with it.

I tried few cables/ports - that's not it. It's working with my ISP's included router. The printer with it's hostname is listed at "Active DHCP Leases" (also in the printers network settings). Tough I also tried to manually set an IP and printer could not connect?? First I thought it might be some block at banIP or likes. Or some ports needed.

But printing it's diagnostic it shows already an error when trying to connect to the gateway/router and wont go on with dns, proxy up to testserver stages, which is weird as DHCP seems to work fine. EDIT: I also did test traceroutes to some HP sites and checked if there is anything of note in banip IPSet Lookups. Kernel and Systemlog don't show anything of interest. Tough Bonjour is disabled on the printer thanks to "Netlink Bandwidth Monitor / nlbwmon" I did note that mDNS Packets have been sent from the printer. But umdns didn't receive any updates - browse/hosts still clear.

Any ideas?

How is the printer connected directly to the router?

FWIW My printer is connected wirelessly and to be able for any device on my network to see and print I have to have WMM diabled on the wireless network the printer is conencted to.

I usually just create a new wireless network just for the printer and have WWM diabled.

Yes, directly. And as I wrote tried few cables and ports. Also no additional vlan setups or likes. WWM is active, but should not affect the lan, or? /EDIT (I thought of some strange catchback, maybe a known bug)

I only did want to use unbound but did have crashes too https://github.com/openwrt/packages/issues/8364, so deactivated now and back to dnsmasq-full till I find time for stubby.

WMM is only wireless.

I know (check edit above). Anyway I tried out of curiosity with disabling WWM.

I did some futher testing after reading s.t. else with tcpdump:

tcpdump results
root@OpenWrt:~# tcpdump -i any -vn host 192.168.1.153
tcpdump: listening on any, link-type LINUX_SLL (Linux cooked v1), capture size 262144 bytes
09:17:15.064202 IP (tos 0xc0, ttl 64, id 9372, offset 0, flags [none], proto UDP (17), length 354)
    192.168.1.1.67 > 192.168.1.153.68: BOOTP/DHCP, Reply, length 326, xid 0xd8de0000, Flags [none]
          Your-IP 192.168.1.153
          Server-IP 192.168.1.1
          Client-Ethernet-Address 70:5a:0f:XX:XX:XX
          Vendor-rfc1048 Extensions
            Magic Cookie 0xXXXXXXXX
            DHCP-Message Option 53, length 1: ACK
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 43200
            RN Option 58, length 4: 21600
            RB Option 59, length 4: 37800
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
            Hostname Option 12, length 8: "HPXXXXXX"
            FQDN Option 81, length 17: [SE] 255/255 "^HHPXXXXXX^Clan^@"
            Domain-Name-Server Option 6, length 4: 192.168.1.1
09:17:15.064245 IP (tos 0xc0, ttl 64, id 9372, offset 0, flags [none], proto UDP (17), length 354)
    192.168.1.1.67 > 192.168.1.153.68: BOOTP/DHCP, Reply, length 326, xid 0xd8de0000, Flags [none]
          Your-IP 192.168.1.153
          Server-IP 192.168.1.1
          Client-Ethernet-Address 70:5a:0f:XX:XX:XX
          Vendor-rfc1048 Extensions
            Magic Cookie 0xXXXXXXXX
            DHCP-Message Option 53, length 1: ACK
            Server-ID Option 54, length 4: 192.168.1.1
            Lease-Time Option 51, length 4: 43200
            RN Option 58, length 4: 21600
            RB Option 59, length 4: 37800
            Subnet-Mask Option 1, length 4: 255.255.255.0
            BR Option 28, length 4: 192.168.1.255
            Default-Gateway Option 3, length 4: 192.168.1.1
            Domain-Name Option 15, length 3: "lan"
            Hostname Option 12, length 8: "HPXXXXXX"
            FQDN Option 81, length 17: [SE] 255/255 "^HHPXXXXXX^Clan^@"
            Domain-Name-Server Option 6, length 4: 192.168.1.1
09:17:15.064790 ethertype ARP, ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:15.064790 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:15.064885 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:15.064928 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:15.064790 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:16.061698 ethertype ARP, ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:16.061698 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:16.061818 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:16.061866 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:16.061698 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:17.061712 ethertype ARP, ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:17.061712 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:17.061826 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:17.061879 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:17.061712 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 0.0.0.0, length 46
09:17:19.078213 ethertype ARP, ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 192.168.1.153, length 46
09:17:19.078213 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 192.168.1.153, length 46
09:17:19.078331 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 192.168.1.153, length 46
09:17:19.078385 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 192.168.1.153, length 46
09:17:19.078213 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 192.168.1.153, length 46
09:17:19.095007 ethertype IPv4, IP (tos 0x0, ttl 1, id 615, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 224.0.1.60: igmp v2 report 224.0.1.60
09:17:19.095007 IP (tos 0x0, ttl 1, id 615, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 224.0.1.60: igmp v2 report 224.0.1.60
09:17:19.113181 ethertype IPv4, IP (tos 0x0, ttl 1, id 1, offset 0, flags [none], proto UDP (17), length 564)
    192.168.1.153.427 > 224.0.1.60.427: UDP, length 536
09:17:19.113181 IP (tos 0x0, ttl 1, id 1, offset 0, flags [none], proto UDP (17), length 564)
    192.168.1.153.427 > 224.0.1.60.427: UDP, length 536
09:17:19.234512 ethertype IPv4, IP (tos 0x0, ttl 1, id 1, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.234512 IP (tos 0x0, ttl 1, id 1, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.234526 ethertype IPv4, IP (tos 0x0, ttl 1, id 1, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.234526 IP (tos 0x0, ttl 1, id 1, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.311829 ethertype IPv4, IP (tos 0x0, ttl 1, id 2, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.311829 IP (tos 0x0, ttl 1, id 2, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.311842 ethertype IPv4, IP (tos 0x0, ttl 1, id 2, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.311842 IP (tos 0x0, ttl 1, id 2, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.496328 ethertype IPv4, IP (tos 0x0, ttl 1, id 3, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.496328 IP (tos 0x0, ttl 1, id 3, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.496342 ethertype IPv4, IP (tos 0x0, ttl 1, id 3, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.496342 IP (tos 0x0, ttl 1, id 3, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.695133 ethertype IPv4, IP (tos 0x0, ttl 1, id 4, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.695133 IP (tos 0x0, ttl 1, id 4, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2074 > 1472
09:17:19.695146 ethertype IPv4, IP (tos 0x0, ttl 1, id 4, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.695146 IP (tos 0x0, ttl 1, id 4, offset 1480, flags [none], proto UDP (17), length 622)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.711545 ethertype IPv4, IP (tos 0x0, ttl 1, id 1369, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 239.255.255.250: igmp v2 report 239.255.255.250
09:17:19.711545 IP (tos 0x0, ttl 1, id 1369, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 239.255.255.250: igmp v2 report 239.255.255.250
09:17:19.713121 ethertype IPv4, IP (tos 0x0, ttl 1, id 5, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:19.713121 IP (tos 0x0, ttl 1, id 5, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:19.713135 ethertype IPv4, IP (tos 0x0, ttl 1, id 5, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.713135 IP (tos 0x0, ttl 1, id 5, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.778439 ethertype IPv4, IP (tos 0x0, ttl 1, id 6, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:19.778439 IP (tos 0x0, ttl 1, id 6, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:19.778453 ethertype IPv4, IP (tos 0x0, ttl 1, id 6, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.778453 IP (tos 0x0, ttl 1, id 6, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.911743 ethertype IPv4, IP (tos 0x0, ttl 1, id 7, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:19.911743 IP (tos 0x0, ttl 1, id 7, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:19.911757 ethertype IPv4, IP (tos 0x0, ttl 1, id 7, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:19.911757 IP (tos 0x0, ttl 1, id 7, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:20.079792 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 192.168.1.1, length 28
09:17:20.079849 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.1.153 tell 192.168.1.1, length 28
09:17:20.080261 ethertype ARP, ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.1.153 is-at 70:5a:0f:XX:XX:XX, length 46
09:17:20.080261 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.1.153 is-at 70:5a:0f:XX:XX:XX, length 46
09:17:20.080261 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.1.153 is-at 70:5a:0f:XX:XX:XX, length 46
09:17:20.111732 ethertype IPv4, IP (tos 0x0, ttl 1, id 8, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:20.111732 IP (tos 0x0, ttl 1, id 8, offset 0, flags [+], proto UDP (17), length 1500)
    192.168.1.153.58072 > 239.255.255.250.3702: UDP, bad length 2165 > 1472
09:17:20.111745 ethertype IPv4, IP (tos 0x0, ttl 1, id 8, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:20.111745 IP (tos 0x0, ttl 1, id 8, offset 1480, flags [none], proto UDP (17), length 713)
    192.168.1.153 > 239.255.255.250: ip-proto-17
09:17:25.211321 ethertype IPv4, IP (tos 0x0, ttl 1, id 2262, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 239.255.255.250: igmp v2 report 239.255.255.250
09:17:25.211321 IP (tos 0x0, ttl 1, id 2262, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 239.255.255.250: igmp v2 report 239.255.255.250
09:17:25.494566 ethertype IPv4, IP (tos 0x0, ttl 1, id 2874, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 224.0.1.60: igmp v2 report 224.0.1.60
09:17:25.494566 IP (tos 0x0, ttl 1, id 2874, offset 0, flags [none], proto IGMP (2), length 32, options (RA))
    192.168.1.153 > 224.0.1.60: igmp v2 report 224.0.1.60

Then I did contact HP if they have any solution cause it's rly strange. And yeah it was the printers fault. Network reset, restart incl power cable off and it did work. -.-