How to properly connect to Fuseki Triple store

Question

I currently work on a project that requires me to insert and query data to a graph hosted on a Apache Jena Fuseki triple store. I am however unable to connect to said store. So far i tried two different methods:

Method 1

 store = new FusekiStore("triplestore.project.customer.de", "Datasetname", "User", "fusekiPassword");
_model = store.GetModel(new Uri("https://triplestore.project.customer.de/Datasetname/"));

when using this method the store is created an when debugging shows store.IsReady = true. _model is also created, however upon inspection i see _model.IsEmpty throws System.UriFormatException. I do get the same exception when calling _model.CreateResource<T>(new Uri("https://triplestore.project.customer.de/Datasetname/" + id))

Method 2

var cred = new NetworkCredential("User", fusekiPassword);
store = StoreFactory.CreateSparqlEndpointStore(new Uri("https://triplestore.project.customer.de/Datasetname/data"), null, cred);
_model = store.GetModel(new Uri("https://triplestore.project.customer.de/Datasetname/"));     

Once again the store is created, however store.IsReady throws a System.NotImplementedException. Ignoring that, i continue trying to create an resouce: _model.CreateResource<T>(new Uri("https://triplestore.project.customer.de/Datasetname/" + id)). This time i get a

VDS.RDF.Query.RdfQueryException: "A HTTP Error occurred while trying to make the SPARQL Query, see inner exception for details

InnerException  {"The remote server returned an error: (400) Bad Request."} System.Exception {System.Net.WebException}

Question

Which is the correct method, to connect to a Fuseki Store using Trinity RDF and how is it done?

Thanks a lot.