Miniupnpd[3188]: Failed to convert hostname

Dear,
I have an issue with miniupnp and IPv6.


The error on System log is this: Fri Jun  8 04:50:24 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:52:01 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:52:01 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:52:01 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:01 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:01 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:01 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:03 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:03 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:03 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:05 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address
Fri Jun  8 04:53:05 2018 daemon.err miniupnpd[3188]: Failed to convert hostname 'fd97:d76d:3cde:0:39ee:24ad:f3ad:a5f' to ip address

If I remove Ip v6 support from LAN dhcp I donìt get this error again.

Firmware version: OpenWrt 18.06-SNAPSHOT r6996-b295e3a
Version of miniupnpd 2.1-1.

Someone knows how to solve this issue without remove the IPv6 support?
This error happen only with my android phone.

Thanks for answers in advance.

Not "half joking", disable UPnP.

UPnP is a security nightmare. It's akin to intentionally installing malware on your own machines.