Hi all, we have a very large customer (90'000 PCs) worldwide that has problems with a Samba server. Here are the details : platform : IBM 4-cpu server runing AIX 4.3 Samba : 2.2.7a compiled with gcc 2.95.3 clients : about 100-200, worldwide network : ATM, at least for the server (I don't have more details, sorry) samba config : pretty straightforward, security=server (might be changed to "domain" soon), a few shares, etc. The problem appeared since clents migrated to Windows XP. About every 2 days, the network receive queue overflow, causing an ATM adapter interface reset. All clients loose their connections (and their unsaved job BTW). The symptom is visible with netstat -a : =============================================================Number of Rcv Buffer on ATM adapter 2207 <== Tendency to grow Rcv Q size last entry 280 <== Tendency to grow Number of connections to PDC 116 Number of samba procs (os) 118 Number of samba client sessions 159 ============================================================= We are more knowledgeable on Solaris and linux, AIX and ATM debugging is somewhat unknown to us. Could someone confirm this behavior ? Would you direct our search to Samba or ATM ? Has anyone experienced the same problem ? Or even a fix... in short : any hint welcome. Thanks and best regards, Charles -- Charles Bueche <bueche@netnea.com> www.netnea.com : your best source for ultra-geeks !