Description of the problem - in the local LAN there are (among others) the following devices:
Device A - NAS, Synology TL918 +, DSM 6.2.3-25426 upd.3, connected to LAN via 2xLAN interface, connected to Bond 1, IP static (192.168.1.180). The NAS has NFS enabled.
Device B - KODI device, HW Amlogic S912rev.a, CoreElec 9.2.6 official, Linux 3.14.29, build 18.9.0, IP static (192.168.1.110). From device B the NAS is visible via NFS (eg via File manager, add source).
Device C - KODI device, HW Amlogic S922Xrev.c (Hardkernel Odroid N2 +), CoreElec 19.0 9 Matrix, Linux 4.1.113, build 19.0, IP static (192.168.1.108).
Devices A, B, C are connected in a common managed router.
Ping between A <-> B, A <-> C, B <-> C is OK
Problem - the NAS (dev.A) is not “by NFS” visible from device C (File manager + add source, or a new network source, the connection procedure and settings of the CoreELEC and KODI system are the same as in device B).
Does anyone have any idea what I might try, where could be the source of the problem?
Thanks in advance for any idea.