Failed to login. CLFRJ0010E: Notes initialization failed

 Everything was all right on my machine until 10.0.1FP4. Earlier I upgraded Notes successfully and everything worked. When I tried to upgrade my client from 10.0.1FP3 to FP4, installation was successful but during initialization process I always received the error message: Failed to login. CLFRJ0010E: Notes initialization failed

I thought something is wrong with the package because I could reinstall and use 10.0.1FP3 without any issues. When Notes 11 was available, I tried it again but I received the same error message. Yes, I totally uninstalled Notes, deleted all folders and contents (backup first), restarted the machine and tried it again. The same error. I tried to turn off virus protection, firewall, etc. but did not help.

I used Google and finally I found an unbelievable solution in German language. It solved the issue for 2 users. Yes, it solved my issue too.

The Solution:

• Uninstall OpenSSL 32 and 64 bit
• Delete files C:\Windows\SysWOW64\libcrypto-1_1.dll and C:\Windows\SysWOW64\libssl-1_1.dll
• Uninstall Notes client
• Backup required files and delete notes and notesdata folders
• Restart your machine
• Install Notes

 It helped me.

Here you are the original text if link does not work anymore:

Hallo,

ich hatte das gleiche Problem.

Bei mir lag es an OpenSSL!

Als Lösung hat funktioniert:
OpenSSL deinstallieren.
Im Verzeichnis C:\Windows\SysWOW64 die beiden Dateien "libcrypto-1_1.dll and libssl-1_1.dll" löschen.
Notes Client erneut installieren.

Danach startet der Client wie gewohnt.