Hi, I don't know how you setup your AIO printer. What I do is assign a
fixed/permanent IP address for the printer that is outside of address range
for the DHCP server function of the router. If your router auto-assigns
addresses in the the range of 192.168.1.100 through 192.168.1.255, set your
printer to an address below 100; e.g. 192.168.1.20. That way, when the
printer looses power it's IP address will not inadvertently be reassigned
by the router.

Note: If your router has the DHCP reservation function. You can also do the
above through the router's control interface.  You will need to know the
MAC address of your printer for that operation.

Android requires use of HP's print service plugin. Do you have it installed
on your devices? Also do you have the HPLIP package installed on your
Fedora systems?

Hope that helps.

On Mon, Apr 24, 2017 at 5:38 AM, Jon Ingason <jon.inga...@telia.com> wrote:

> Hi,
>
> I got a very strange network problem. My home network is one router
> (ASUS RT-N66U) (R), two Fedora machines (A F24 and B F25) connected to
> the switch ports on the route. I hav also a laptop, Windows 10 (C), HP
> ENVY AIO (P), and couple Android devices (mobile phones, tablets etc),
> all connected via WiFi to the router.
>
> I was installing the printer (P) on B with HP Device Manager (HPDM) and
> that went well. Then I started HPMD on A and the printer icon showed up
> in HPMD, but the printer and scanner didn't show up. Refresh didn't
> helped either. The I removed the printer and tried to install it again.
> Got message "HPLIP cannot detect printers in your network."
>
> I then pinged P from A but no response from the printer. Then I locked
> at the HPMD on B and every thin was OK. I could refresh the printer and
> both printer and scanner was there. I pinged P from B and C with
> success, but not from A. But I could ping B, D and R from A with success.
>
> I used Wireshark on A and B to see what is happening, but it just
> confirmed that P didn't respond to A, responded to B.
>
> Question is what can be the problem here.
> --
> Regards
>
> Jon Ingason
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