Missing M or WL files when downloading Paclets

Hi,
I’m getting the last few days error messages when downloading (any) paclets.
I’m using MM12
Any suggestions?
Thx!

VerifyPaclet["C:\\Users\\lvveen\\AppData\\Roaming\\Mathematica\\\
Paclets\\Temporary\\CityData_Index-10.0.513724821.paclet"]

gives True and the Internet Test is oke (the error is after downloading the Paclet.

PacletInformation["C:\\Users\\lvveen\\AppData\\Roaming\\Mathematica\\\
Paclets\\Temporary\\CityData_Index-10.0.513724821.paclet"]

gives

{“Name” → “CityData_Index”, “Version” → “10.0.5”,
“BuildNumber” → “”, “Qualifier” → “”, “WolframVersion” → “10.0+”,
“SystemID” → All, “ProductName” → All, “Description” → “”,
“Category” → “”, “Creator” → “”, “Publisher” → “”,
“Support” → “”, “Internal” → False, “Updating” → Manual,
“Location” →
“C:\Users\lvveen\AppData\Roaming\Mathematica\Paclets\
Temporary\CityData_Index-10.0.513724821.paclet”, “Context” → {},
“Enabled” → True, “Loading” → Manual}

And using:
PacletInstall generates no error message and seems to work but I don’t know exactly how to check.