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)
libsmbclient melde in flater, mar omskreaun net wat de swierrichheid is. Dit kin wize op in swiere swierrichheid yn jo netwurk, of swierrichheid mei libsmbclient. As jo ús helpe wolle, lever dan in tcpdump oan fan de netwurkynterface wylst jo besykje te blêdzjen (Tink derom: de dump kin privee gegevens befetsje, stjoer it pas op as jo derfan fersekere hawwe dat der gjin gefoelige gegevens yn steane. Jo kinne de ynformaasje stjoere nei ien fan de ûntwikkelders persoanlik as dy der opfreegje).