browsing network in file browser does not show windows machine

I have a network with a linux workstation and a printer on fix adress and a lot of device like tablets, tv and windows machines on dhcp. I just spent about 10 hours setting up Samba. I am to the point where I can acces share but I cannot see the windows machine when I go in the file browser. I have different reaction

file browser: when going to windows network show "folder is empty"
dolphin: when going to network: file of folder network:/ does not exist
when going to shared folders smb: see my linux machine and the printer
findsmb: see my linux machine
smbtree: see my linux machine and windows machine with share listed
smbclient -L : it will list the windows share but after the line "reconnecting with SMB1 for workgroup listing" there is
smblcli_req_writev_submit: called for dialect[smb3_11] server[window s machine name]

even after using mount -t cifs and having a mounted partition of the windows shared folder it continue to not list the windows machine in the file browser windows network

the smb.conf has
workgroup = WORKGROUP
netbios name = my machine name
security = user
local master = yes
preferred master = yes
wins support = yes
client min protocol = NT1
server min protocol = NT1
server max protocol = smb2_10
ntlm auth = true