Error: Various Error Messages Attempting to Run Programs or Copy Files From WAN

RoyATokeshi
March 26, 2004 4:39 pm

Citrix states in their article: CTX201943

CTX201943 - Error: Various Error Messages Attempting to Run Programs or Copy Files From WAN with WinFrame

This document was published at: http://support.citrix.com/kb/entry.jspa?externalID=CTX201943

Document ID: CTX201943, Created on: Jul 13, 2000, Updated: Apr 23, 2003

Products: Citrix WinFrame 1.8

The primary symptom was the inability to copy files larger than about 2K from a server on the far side of a token ring WAN. The token ring segment was Type 1 IBM 16MB crosssing a 128K connection.

Attempts to run any applications from the netware server gave the error message "xxx is not a valid Windows NT application."

The event log shows the following error:

"MS Client for Netware redirector has timed out on one or more requests to "

When trying to copy a file from File Manager, you receive:

"File Manager can not copy XXXX"
"Error performing inpage operation"

Running programs from File Manager gives the error message: "! Cannot run program."

The problem is that the WAN is not able to pass the packets consistently in a complex WAN environment. The workaround to this problem is to add an entry to the Registry of the WinFrame machine turning off Packet burst mode.

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

To Turn off Packet Burst Mode

1. At a command prompt, type REGEDT32.

2. Single-click on HKEY_LOCAL_MACHINE.

3. Double-click the following in the order listed:

A. SYSTEM
B. CurrentControlSet, Services

4. Scroll to NWCWorkstation.

5. Double-click the following in the order listed:

A. NWCWorkstation
B. Parameters

6. Check to see if there is a MaxBurstSize entry in the box on the right. If so, double-click it and proceed to step 8.

7. If MaxburstSize does not exist, select choose Add Value from the Edit menu. In the Value Name field, type MaxBurstSize. Change the Data Type field to REG_DWORD. Choose OK.

8. Enter 0 for the value. Choose OK.

9. Go back to HKEY_LOCAL_MACHINE.

10. Double-click the following in the order listed:

A. SYSTEM
B. CurrentControlSet, Services

11. Scroll to NWRDR.

12. Double-click the following in the order listed:

A. NWRDR
B. Parameters

13. Check to see if there is a DefaultMaxPktSize entry in the box on the right. If there is, double-click it and proceed to step 15.

14. If DefaultMaxPktSize does not exist, select choose Add Value from the Edit menu. In the Value Name field, type DefaultMaxPktSize. Change the Data Type field to REG_DWORD. Choose OK.

15. Change the Radix field to Decimal. For Token Ring, enter 512 in the Data field (higher values may be possible). Choose OK.

16. Exit the Registry Editor, close all open applications, shut down, and restart the machine.



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