If I say to browse domain, dolphin says
Please send a full bug report at http://bugs.kde.org
libsmbclient reported an error, but did not specify what the problem is. This might indicate a severe problem with your network - but also might indicate a problem with libsmbclient.
If you want to help us, please provide a tcpdump of the network interface while you try to browse (be aware that it might contain private data, so do not post it if you are unsure about that - you can send it privately to the developers if they ask for it)"
Can you connect to any servers directly by IP address? For example if you go to "smb://[ip address of other server]", are you able to connect?
For example I can browse network:
$ smbtree -b -N
\\SALEX\Epson-AL-C4200 Epson AL-C4200
\\SALEX\IPC$ IPC Service (Лёха)
\\SALEX\sambashare Samba Share
In the same time mount.cifs reports error for mount.
So those shares are inaccessible even when you're not using Dolphin?
I can make full test tomorrow only, now is a night time here.
OK, munt.cifs say
mount error(95): Operation not supported
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
but smbclient connects to the srvers shares and dolphin can browse this shares if say them to connect with full address, i.e. smb://server.domain.xx/C$.
OK, if you can get to the shares in Dolphin by entering the full path, buit browsing is bustes, then this is a duplicate of https://bugs.kde.org/show_bug.cgi?id=369850
*** This bug has been marked as a duplicate of bug 369850 ***
OK, adding vers=2.0 to the mount string resolve problem with mount, but Dolphin don't browse network...