From: fizzbintuesday@that-google-mail-domain.com   
      
   JJ wrote:   
   >   
   > I think this is a problem in the network communication part, where the   
   > response timeout is too low. The problem is common in Windows (all   
   > versions; even if power management is not interfering), but rarely   
   > occur in Linux. So if there is a setting for that timeout, it would   
   > be my prime suspect.   
      
   Thanks all for trying, but in the absence of a better command line   
   method, I used a work-around.   
      
   Since NET VIEW /NETWORK works for all machines sometimes, this saves   
   them for future reference so it doesn't need to find them every time.   
      
   Its purpose is to locate USB drives on whichever PC they might be   
   plugged in to, so a backup script can use the drive even if I moved it.   
   It does require that the remote PC has previously established a share on   
   the drive.   
      
   I called it FindVolSN.cmd and I can call it like this for example:   
      
   for /f "tokens=4" %%a in ('findvolsn 4278-8365') do backup %%a   
      
   The script follows, triple spaced to reveal line wrap:   
      
      
      
   @echo off   
      
      
   set _vol_sn_list=%*   
      
      
   if not defined _vol_sn_list goto :eof   
      
      
      
      
      
   rem  searching for Volume Serial Number in LOCAL drives   
      
      
   for %%a in (C D E F G H I J K L M N O P Q R S T U V W X Y Z) do for /f   
   "skip=1 tokens=5" %%b in ('vol %%a: 2^>nul') do call :check_vol_sn %%a:   
   %%b   
      
      
      
      
      
   :get_unc_computers   
      
      
   rem  searching for Volume Serial Number in NETWORK drives   
      
      
   rem  parameters: none   
      
      
   rem  scanning for all computer names in network (could take a few   
   minutes)   
      
      
      
      
      
   rem  wake up the network   
      
      
   rem  Share names found in the past were saved in the registry   
      
      
   rem  so the other computers can be "awakened" by a DIR command.   
      
      
   for %%a in (%NETWORK_SHARE_LIST%) do for /l %%b in (1,1,10) do dir %%a   
    >nul 2>nul   
      
      
      
      
      
   set "_in_computer_list="   
      
      
   for /f "tokens=1-4" %%a in ('net view /network') do (   
      
      
    if /i "%%a %%b %%c %%d"=="The command completed successfully." set   
   "_in_computer_list="   
      
      
    if not defined _in_computer_list (   
      
      
     rem if output is "----------" then the next line is a computer name   
      
      
     set "_text=%%a"   
      
      
     call set "_text=%%_text:~0,10%%"   
      
      
     call set "_text=%%_text:----------=%%"   
      
      
     if not defined _text set _in_computer_list=TRUE   
      
      
    ) else (   
      
      
     if /i not "%%~a"=="\\%computername%" (   
      
      
      set "_compname=%%a"   
      
      
      call set "_doubleback=%%_compname:~0,2%%"   
      
      
      call set "_doubleback=%%_doubleback:\\=%%"   
      
      
      if not defined _doubleback call :get_unc_shares %%a   
      
      
     )   
      
      
    )   
      
      
   )   
      
      
   if defined NETWORK_SHARE_LIST setx /M NETWORK_SHARE_LIST   
   "%NETWORK_SHARE_LIST%">nul   
      
      
   goto :eof   
      
      
      
      
      
   rem =========subroutines=========   
      
      
      
      
      
   :get_unc_shares   
      
      
   rem  parameters: 1 = UNC computer (i.e. \\ASUS)   
      
      
   set "_in_share_list="   
      
      
   for /f "tokens=1-4" %%w in ('net view %1') do (   
      
      
    if /i "%%w %%x %%y %%z"=="The command completed successfully." set   
   "_in_share_list="   
      
      
    if not defined _in_share_list (   
      
      
     rem if output is "----------" then the next line is a computer name   
      
      
     set "_text=%%~w"   
      
      
     call set "_text=%%_text:~0,10%%"   
      
      
     call set "_text=%%_text:----------=%%"   
      
      
     if not defined _text set _in_share_list=TRUE   
      
      
    ) else (   
      
      
     if "%%x"=="Disk" call :get_vol_sn "%~1\%%~w"   
      
      
    )   
      
      
   )   
      
      
   goto :eof   
      
      
      
      
      
   :get_vol_sn   
      
      
   rem  parameters: 1 = UNC share (i.e. \\ASUS\BU1)   
      
      
   for /f "skip=1 tokens=1-5" %%l in ('dir %1 2^>nul') do (   
      
      
    if /i "%%l %%m %%n %%o"=="Volume Serial Number is" call :check_vol_sn   
   %1 %%p   
      
      
   )   
      
      
   echo;%NETWORK_SHARE_LIST% | find /i "%~1">nul   
      
      
   if errorlevel 1 set NETWORK_SHARE_LIST=%NETWORK_SHARE_LIST% %1   
      
      
   goto :eof   
      
      
      
      
      
   :check_vol_sn   
      
      
   rem  parameters: 1 = UNC share 2 = volume serial number   
      
      
   echo %_vol_sn_list% | find /i "%2" >nul 2>nul   
      
      
   if not errorlevel 1 echo Found %2 in %1   
      
      
   goto :eof   
      
      
   --   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)