ServerErrorVersionNotSupported

[imranknp]

I am getting the following error with the Ipp server url http://{IpAddress}/printers/Xerox-WorkCentre-6505/.printer

Message: 
SharpIpp.Exceptions.IppResponseException : Printer returned error code
Version: 256
StatusCode: ServerErrorVersionNotSupported
RequestId: 1
Sections:
Tag: OperationAttributesTag

Attributes:
(Charset) attributes-charset: utf-8
(NaturalLanguage) attributes-natural-language: en-us
(TextWithoutLanguage) status-message: Server: (503) Version Not Supported

[twaalewijn]

I don't know if your situation is the same but I ran into the same error today while setting up a scuffed environment to test using IIS as the print server.

The request classes have a default version specified which is usually enough but the printer driver I was using technically wasn't an actual printer at all so I think IIS defaulted to using IPP version 1.0 (0x0100/256).
Or maybe the IIS printer service only supports version 1.0, I haven't investigated further yet.

Anyway, there is no IppVersion.V1 at the moment it seems but I still got the requests to go through by just casting it e.g.:

var printerAttributes = await client.GetPrinterAttributesAsync(new GetPrinterAttributesRequest
{
    Version = (IppVersion) 0x0100, // IppVersion 1.0 == 0x0100 == 256
    PrinterUri = new Uri("http://{IpAddress}/printers/Xerox-WorkCentre-6505/.printer")
});

Maybe that helps in your situation as well.