Odroid C1+ nfs

[Sagittarius]

$ uname -a
Linux Odroid-C1 6.2.10-1-ARCH #1 SMP PREEMPT Fri Apr 7 11:19:04 MDT 2023 armv7l GNU/Linux

I know the limitations of mainline kernel on Odroid C1+ (HDMI...)

iptables are not set
sudo systemctl status iptables
○ iptables.service - IPv4 Packet Filtering Framework
Loaded: loaded (/usr/lib/systemd/system/iptables.service; disabled; preset: disabled)
Active: inactive (dead)

my same fstab line works on another computer (an Odroid-C2):
192.168.0.99:/volume1/music/mpd /mnt/music nfs v3,rsize=32768,nolock 0 0

showmount -e 192.168.0.99 gives: /volume1/music 192.168.0.0/24
my ip adress is in this range

my time and date are properly set:
timedatectl status
Local time: jeu. 2023-07-06 09:08:26 CEST
Universal time: jeu. 2023-07-06 07:08:26 UTC
RTC time: n/a
Time zone: Europe/Paris (CEST, +0200)
System clock synchronized: no
NTP service: inactive
RTC in local TZ: no

but mount -v /srv/mpd gives:
mount.nfs: timeout set for Thu Jul 6 09:11:07 2023
mount.nfs: trying text-based options 'v3,rsize=32768,nolock,addr=192.168.0.99'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.0.99 prog 100003 vers 3 prot TCP port 2049
...
mount.nfs: Connection timed out for 192.168.0.99:/volume1/music/mpd on /srv/mpd

I guess I should use fuse with sshfs ro, shouldn't I?