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I think it is not the problem in number of concurrent users, but in number of Threads that IIS holds opened for file transfers (also for listing, viewing etc...). The default number of concurrent threads in IIS for FTP is 10. You can change this safelly to 20 or 30 by editing Registry entry for &quot;MaxPoolThreads&quot;.<br />
Here is how to: <a href="http://support.microsoft.com/kb/147191" rel="ugc nofollow">http://support.microsoft.com/kb/147191</a>
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I think it is not the problem in number of concurrent users, but in number of Threads that IIS holds opened for file transfers (also for listing, viewing etc...). The default number of concurrent threads in IIS for FTP is 10. You can change this safelly to 20 or 30 by editing Registry entry for "MaxPoolThreads".
Here is how to: http://support.microsoft.com/kb/147191 [http://support.microsoft.com/kb/147191]

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EDIT:<br />
previous post was for older FTP, so I guess newer FTP 6.0 does not have these problems.<br />
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check under FTP server site properties, how many concurent connections you have allowed. Set it to 70 instead of unlimited.<br />

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EDIT:
previous post was for older FTP, so I guess newer FTP 6.0 does not have these problems.

check under FTP server site properties, how many concurent connections you have allowed. Set it to 70 instead of unlimited.


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I have an FTP site that was created under Windows Server 2003 IIS 6.0. &nbsp;I created a generic user for login puposes. &nbsp;I work for a construction company and we have about 70 subcontractors trying to log in at the same time with the same user name. &nbsp;A few have reported that they are experiencing issues logging in. &nbsp;How many concurrent logins can one user be allowed for an FTP site or for Windows Server 2003?
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I have an FTP site that was created under Windows Server 2003 IIS 6.0.  I created a generic user for login puposes.  I work for a construction company and we have about 70 subcontractors trying to log in at the same time with the same user name.  A few have reported that they are experiencing issues logging in.  How many concurrent logins can one user be allowed for an FTP site or for Windows Server 2003?

Concurrent logins for one user

IIS is Internet Information Services, the web server included with Windows Server operating systems. All current versions are built on a modular architecture; modules can be added or removed individually so that those required for specific functionality are installed. The full installation of IIS includes HTTP, security, content, compression, caching, logging and diagnostics.