InfoPath Error - On .Net 3.5 SP1 update

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Are you getting errors like the following that makes you frustrated even after validating/checking the webservices URL Path:

1. Some rules were not applied

2. "An error occurred accessing a data source.
An entry has been added to the Windows event log of the server.
Log ID:5566"

If this happens only on certain servers  then, the issue might be with the crazy .Net framework 3.5 SP1

If you're getting the above infopath error after installing .net framework 3.5 SP1, then perform the following. I broke my head for nearly 8 hours:


1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
3. Right-click Lsa, point to New, and then click DWORD Value.
4. Type DisableLoopbackCheck, and then press ENTER.
5. Right-click DisableLoopbackCheck, and then click Modify.
6. In the Value data box, type 1, and then click OK.
7. Exit Registry Editor.
8. Restart the computer.

This should solve the issue.

Believ me, this costed me a lot of time for the second time. Damn it.

Comments

Unknown said…
When you promoted your form from dev->qa->prod, did you run into a scenario where it worked in one environment but not the other? Both our DEV and QA enviornment have .net 3.5 SP1 installed. The form works in DEV, but not in QA.

Any ideas?
3:31 PM
Nag said…
Hi,

We had same issue for one of Prod sites.

Please can you let me know shall we enable same registry loopback setting for PROD front end servers..

Thanks,
Nag...
10:15 AM
Anonymous said…
This worked for our issue. Our farm has multiple web front ends, so we enabled this registry setting and added host file entries to each WFE server so they only look to themselves for things like web service calls.
1:12 PM
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