As a quick way to get the error message you can use this in a powershell prompt:
For the error the OP had '64' it returns:
"The specified network name is no longer available"
You need the [int] because it's a decimal and it looks like a [string]. If you have a HEX number you can just use:
Which is the same error as above but the value supplied as HEX '0x40' where '0x' to Windows means Base 16 (HEX)
Which is '01000000' in Binary Base 2
You can also use the convert function:
which returns 64 as the value
Win the above example "40" is the HEX value and 16 is the base
So to convert a Binary value it would look like this:
Binary being to Base '2' so you can do this:
and we get the same message: 'The specified network name is no longer available' as the result.
I hope that may be useful to others in the future,
Windows10 Pro X64 V1809 B17763.194 MR v7.2.3906