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SL 2018 CU4 Login failure

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Posted on by Community Member Microsoft Employee

Upgrading a client from Solomon 6.5 to Dynamics SL 2018 CU4. I had the test environment working for two of their companies with no problem. Did a test upgrade of all companies with no issues. This morning, while trying to go live, I'm getting errors on login. The server won't let me past the signon screen without giving two errors on the application failing (Problem Signature.txt and Problem Signature 2.txt attached.) I've also included the text from the Windows Event log error and the Report.wer files.

So far, I've run the Database Maintenance Upgrade process again, updated the view, and run Sync Ownership. Hopefully, I'm not looking at a full reinstall of SL.

Any suggestions?

Thanks in advance!

Stuart Nottingham

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Community Member Microsoft Employee on at

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RE: SL 2018 CU4 Login failure

This was happening at the server. I checked the registry settings and they were fine. What finally resolved it was to change the client to Windows Authentication instead of SQL.
Brian_IL 705 on at

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RE: SL 2018 CU4 Login failure

If clients still have problems connecting, you might want to check workstations for the 3 SL registry entries under the Software\WOW6432Node key to make sure all are populated.
CFROTON 4,710 on at

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RE: SL 2018 CU4 Login failure

Dear Stuart,

Unfortunately the screenshots did not attach.

Best Regards,

Jana MacDonald

MSFT Dynamics Support