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Server freeze when user logs in.
- Thread starter chifu
- Start date
CitrixEngineer
Technical User
What is the setup?
MF version? O/S - W2k or TSE?
Is the authentication server on the same subnet? Fileservers? Have any Fileservers been modified to allow greater user access to the shares by altering the MaxWorkItems registry entry?
What clients? WinCE, 9.x, Linux?
Are the DNS servers configured correctly (even if the answer is yes to this one, it's worth double-checking).
MF version? O/S - W2k or TSE?
Is the authentication server on the same subnet? Fileservers? Have any Fileservers been modified to allow greater user access to the shares by altering the MaxWorkItems registry entry?
What clients? WinCE, 9.x, Linux?
Are the DNS servers configured correctly (even if the answer is yes to this one, it's worth double-checking).
- Thread starter
- #3
The Citrix servers are NT4 TSE Metaframe 1.8 SP3
The PDC is a separate NT server. Profiles are held on the PDC. Also have one other file server and a exchange server.
All machines use static IP addresses.
NT Clients with Citrix client 6.20.985
I think the MaxWorkItems had been altered on the PDC, but I will check. Is it good or bad to alter this?
The PDC is a separate NT server. Profiles are held on the PDC. Also have one other file server and a exchange server.
All machines use static IP addresses.
NT Clients with Citrix client 6.20.985
I think the MaxWorkItems had been altered on the PDC, but I will check. Is it good or bad to alter this?
CitrixEngineer
Technical User
The problem with the MaxWorkItems setting is that you have to be careful to get the right setting for your setup.
There is a document on MS site which seems to imply that a setting of 4096 is good for all fileservers.
However, this setting will cause win9.x clients to freeze when attempting to gain access to network resources on servers with this setting. This is why I suspect the problem lies in this area.
The problem with Windows 9.x is that it can only handle a maximum of 64 WorkItems. I can't remember the figure for NT Workstation, but it's worth finding out.
Stay with this one, because here's where it gets fun;
4096 is a multiple of 64 (the square), and that is what causes the 9.x clients to hang. I found that changing the value of MaxWorkItems to (eg) 5000 (and adjusting MaxMPXCt accordingly - it needs to be 25% of the MaxWorkItems figure) fixed this.
This is why you need to know the figure for the NT clients - if it happens that the value you use is a multiple of the Max that Workstation can use, you're in trouble.
The File Server may also need more WorkItems - try adjusting it so that it matches the PDC.
I hope this helps - there are a couple of really good articles by Rick Mack on TheThin.net on this, if you require further reading.
There is a document on MS site which seems to imply that a setting of 4096 is good for all fileservers.
However, this setting will cause win9.x clients to freeze when attempting to gain access to network resources on servers with this setting. This is why I suspect the problem lies in this area.
The problem with Windows 9.x is that it can only handle a maximum of 64 WorkItems. I can't remember the figure for NT Workstation, but it's worth finding out.
Stay with this one, because here's where it gets fun;
4096 is a multiple of 64 (the square), and that is what causes the 9.x clients to hang. I found that changing the value of MaxWorkItems to (eg) 5000 (and adjusting MaxMPXCt accordingly - it needs to be 25% of the MaxWorkItems figure) fixed this.
This is why you need to know the figure for the NT clients - if it happens that the value you use is a multiple of the Max that Workstation can use, you're in trouble.
The File Server may also need more WorkItems - try adjusting it so that it matches the PDC.
I hope this helps - there are a couple of really good articles by Rick Mack on TheThin.net on this, if you require further reading.
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- #5
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