Murray Taylor
2004-Jun-04 00:53 UTC
[Samba] Help with: "Cannot copy Filename: The specified network name is no longer available" error
I am not sure if this is a windows problem or a Samba problem. We have a network consisting of a mixture of Samba and windows servers running under a windows PDC. The network is a WAN with radio (802.11B) point-to-point links between buildings within the campus, and frame relay and ADSL links to interstate offices. The interstate offices have windows BDC's. Most of the desktops are win2k workstations / laptops. We are often getting this message Error copying file or folder - - - - - - - - - - - - - - - - - - - - - - Cannot copy XXXXX: The specified network name is no longer available - - - - - - - - - - - - - - - OK - - - - - - - - - - - - - - - - - - - - (Ascii art version of popup box) when doing file copies from desktops to the various servers - both win servers and Samba servers Usually a single file copy will work but most attempts at multiple file copies will die with the above message. Sometimes the copy actually works for the file named in the error message, but not always. Subsequent files are not copied in the multiple copy action. When the error is cleared, the source and destination files / folders are still 'available' (what ever that means !) The question is: Is this a Windows Problem, a Samba problem or something else? We are running various versions of Samba from 2.0.7 to Version 3.0-alpha17 -- Murray Taylor Special Projects Engineer --------------------------------- Bytecraft Systems & Entertainment P: +61 3 8710 2555 F: +61 3 8710 2599 D: +61 3 9238 4275 M: +61 417 319 256 E: murraytaylor@bytecraftsystems.com or visit us on the web http://www.bytecraftsystems.com http://www.bytecraftentertainment.com ************************************************************************ This Email has been scanned for Viruses by MailMarshal. ************************************************************************
Stephen Jones
2004-Jun-22 05:20 UTC
[Samba] Re: Help with: "Cannot copy Filename: The specified network name is no longer available" error
Hello All, I am encountering the exact same error message when accessing SMB shares through a pptp tunnel (using the linux pptp client on a SmoothWall gateway). The linux pptp folks pointed me towards the samba lists as this appears to be the source for SMB/NMB gurus where linux is involved. I have a pptp tunnel to a remote SMB share that is accessible to clients behind the gateway. I don't experience any problems (so far) when accessing the file shares or transferring files across the ppp link from a single client. As soon as a second client initates any kind of SMB traffic across the ppp tunnel, the first clients session halts with the "Cannot copy {filename}: the specified network resource is no longer available." message (exactly like the author of this thread describes.) The traffic started by the second client continues, until another client intiates SMB traffic, and so on. The ppp tunnel does not freeze or hang, or die, only the SMB session is terminated. The SMB shares are immediately accessible from the first client, but doing so kills the second session, etc. A tcpdump capture on the gateway reveals a series of 4-6 packets described like this: [SMB] [Short Frame] In a row. The packets after the series of [Short Frame] packets are what appears to be "normal" SMB traffic headed for the second client. I don't know enough about what I am looking at in the tcpdump log to make heads or tails of it. I have tried every known mtu and mss trick in the book, and so far, all to no avial. Does anyone have any ideas of where I should look next? Kernel: 2.4.26 + mppe patch and pptp/gre conntrack patches ppp: 2.4.2 (including mppe support) pptp client: 1.4.0 - 1.5.0 rc1 iptables 1.2.9 + pptp/gre conntrack patches. Thank you very much for your time and input. SJ