DNS not resolved

Support
,
6

Hello,
as this topic and DNS Issue (probably bug) and DNS Issue/bug after resetting the network adapters
Look like I face nearly the same issue,
i set the dns server,but suddenly there is no resolve of request
it’s work sometimes and others not
I’m not sure where is the wrong?
I’m making changes using :980 interface

# db networks show
192.168.91.0=network
    Description=loc
    Mask=255.255.255.0
br0=bridge
    FwInBandwidth=
    FwOutBandwidth=
    bootproto=none
    gateway=
    ipaddr=192.168.100.9
    netmask=255.255.255.0
    role=green
br1=bridge
    FwInBandwidth=
    FwOutBandwidth=
    bootproto=none
    gateway=192.168.98.1
    ipaddr=192.168.98.4
    netmask=255.255.255.0
    role=red
ens18=ethernet
    arpcheck=no
    bridge=br0
    onboot=yes
    role=bridged
ens19=ethernet
    role=
eth0=ethernet
    FwInBandwidth=
    FwOutBandwidth=
    bootproto=none
    bridge=br1
    nslabel=
    role=bridged
ppp0=xdsl-disabled
    AuthType=auto
    FwInBandwidth=
    FwOutBandwidth=
    Password=
    name=PPPoE
    provider=xDSL provider
    role=red
    user=
red=provider
    interface=br1
    weight=1

config show dnsmasq

dnsmasq=service
CacheSize=4000
TCPPort=53
UDPPorts=53,67,69
access=green
dhcp-boot=
except-interface=virbr0
status=enabled
tftp-status=enabled

config show dns

dns=configuration
NameServers=1.1.1.1,192.168.100.1

cat 25NameServers

> # 25NameServers
> #
> # Don't read /etc/resolv.conf. Get upstream servers only from the
> # command line or the dnsmasq configuration file.
> no-resolv
> 
> # Specify IP address of upstream servers directly. Setting this flag
> # does not suppress reading of /etc/resolv.conf, use "no-resolv" to do
> # that.
> {
>     foreach (split ',', $dns{NameServers}) {
> 	$OUT .= "server=$_\n";
>     }
> }
> 
> # By  default,  dnsmasq  will  send queries to any of the upstream
> # servers it knows about and tries to favour servers that are known
> # to  be  up.  Uncommenting this forces dnsmasq to try each query
> # with  each  server  strictly  in  the  order  they   appear   in
> # /etc/resolv.conf
> all-servers

# cat /etc/resolv.conf 
# ================= DO NOT MODIFY THIS FILE =================
# 
# Manual changes will be lost when this file is regenerated.
#
# Please read the developer's guide, which is available
# at NethServer official site: https://www.nethserver.org
#
# 
domain ih.loc
search ih.loc

# dnsmasq is enabled on this machine:
nameserver 127.0.0.1

even when try
# signal-event nethserver-dnsmasq-update
# signal-event interface-update
No Luck.
so is considered as @vistad issue
the nethserver working in Virtualization and spread networks bridged (green,red)
installed using neth ISO
Best Regards