1 | initial version |
(New answer for clarity and readability)
I just looked through the trace files.
We can see a lot of Windows systems (both servers and clients) using outdated SMB configurations:
The browser elections indicate a problem with at least one system. Could be a host based firewall / iptables configuration blocking incoming UDP 138, could be a faulty SMB implementation in a very old box.
Please get rid of SMB v1.
Or at least configure one stable system as master browser.