diff --git a/node/impl/storminer.go b/node/impl/storminer.go
index 8a3f94e35..764e4fb36 100644
--- a/node/impl/storminer.go
+++ b/node/impl/storminer.go
@@ -569,13 +569,38 @@ func (sm *StorageMinerAPI) MarketDataTransferDiagnostics(ctx context.Context, mp
 	if !ok {
 		return nil, errors.New("api only works for non-mock graphsync implementation")
 	}
+
+	inProgressChannels, err := sm.DataTransfer.InProgressChannels(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	allReceivingChannels := make(map[datatransfer.ChannelID]datatransfer.ChannelState)
+	allSendingChannels := make(map[datatransfer.ChannelID]datatransfer.ChannelState)
+	for channelID, channel := range inProgressChannels {
+		if channel.OtherPeer() != mpid {
+			continue
+		}
+		if channel.Status() == datatransfer.Completed {
+			continue
+		}
+		if channel.Status() == datatransfer.Failed || channel.Status() == datatransfer.Cancelled {
+			continue
+		}
+		if channel.SelfPeer() == channel.Sender() {
+			allSendingChannels[channelID] = channel
+		} else {
+			allReceivingChannels[channelID] = channel
+		}
+	}
+
 	// gather information about active transport channels
 	transportChannels := gsTransport.ChannelsForPeer(mpid)
 	// gather information about graphsync state for peer
 	gsPeerState := graphsyncConcrete.PeerState(mpid)
 
-	sendingTransfers := sm.generateTransfers(ctx, transportChannels.SendingChannels, gsPeerState.IncomingState)
-	receivingTransfers := sm.generateTransfers(ctx, transportChannels.ReceivingChannels, gsPeerState.OutgoingState)
+	sendingTransfers := sm.generateTransfers(ctx, transportChannels.SendingChannels, gsPeerState.IncomingState, allSendingChannels)
+	receivingTransfers := sm.generateTransfers(ctx, transportChannels.ReceivingChannels, gsPeerState.OutgoingState, allReceivingChannels)
 
 	return &api.TransferDiagnostics{
 		SendingTransfers:   sendingTransfers,
@@ -587,11 +612,14 @@ func (sm *StorageMinerAPI) MarketDataTransferDiagnostics(ctx context.Context, mp
 // to produce detailed output on what's happening with a transfer
 func (sm *StorageMinerAPI) generateTransfers(ctx context.Context,
 	transportChannels map[datatransfer.ChannelID]gst.ChannelGraphsyncRequests,
-	gsPeerState peerstate.PeerState) []*api.GraphSyncDataTransfer {
+	gsPeerState peerstate.PeerState,
+	allChannels map[datatransfer.ChannelID]datatransfer.ChannelState) []*api.GraphSyncDataTransfer {
 	tc := &transferConverter{
-		matchedRequests: make(map[graphsync.RequestID]*api.GraphSyncDataTransfer),
-		gsDiagnostics:   gsPeerState.Diagnostics(),
-		requestStates:   gsPeerState.RequestStates,
+		matchedChannelIds: make(map[datatransfer.ChannelID]struct{}),
+		matchedRequests:   make(map[graphsync.RequestID]*api.GraphSyncDataTransfer),
+		gsDiagnostics:     gsPeerState.Diagnostics(),
+		requestStates:     gsPeerState.RequestStates,
+		allChannels:       allChannels,
 	}
 
 	// iterate through all operating data transfer transport channels
@@ -620,10 +648,12 @@ func (sm *StorageMinerAPI) generateTransfers(ctx context.Context,
 }
 
 type transferConverter struct {
-	matchedRequests map[graphsync.RequestID]*api.GraphSyncDataTransfer
-	transfers       []*api.GraphSyncDataTransfer
-	gsDiagnostics   map[graphsync.RequestID][]string
-	requestStates   graphsync.RequestStates
+	matchedChannelIds map[datatransfer.ChannelID]struct{}
+	matchedRequests   map[graphsync.RequestID]*api.GraphSyncDataTransfer
+	transfers         []*api.GraphSyncDataTransfer
+	gsDiagnostics     map[graphsync.RequestID][]string
+	requestStates     graphsync.RequestStates
+	allChannels       map[datatransfer.ChannelID]datatransfer.ChannelState
 }
 
 // convert transfer assembles transfer and diagnostic data for a given graphsync/data-transfer request
@@ -657,6 +687,9 @@ func (tc *transferConverter) convertTransfer(channelID datatransfer.ChannelID, h
 	}
 	tc.transfers = append(tc.transfers, transfer)
 	tc.matchedRequests[requestID] = transfer
+	if hasChannelID {
+		tc.matchedChannelIds[channelID] = struct{}{}
+	}
 }
 
 func (tc *transferConverter) collectRemainingTransfers() {
@@ -670,6 +703,21 @@ func (tc *transferConverter) collectRemainingTransfers() {
 			tc.convertTransfer(datatransfer.ChannelID{}, false, nil, nil, requestID, false)
 		}
 	}
+	for channelID, channelState := range tc.allChannels {
+		if _, ok := tc.matchedChannelIds[channelID]; !ok {
+			channelID := channelID
+			cs := api.NewDataTransferChannel(channelState.SelfPeer(), channelState)
+			transfer := &api.GraphSyncDataTransfer{
+				RequestID:               graphsync.RequestID(-1),
+				RequestState:            "graphsync state unknown",
+				IsCurrentChannelRequest: false,
+				ChannelID:               &channelID,
+				ChannelState:            &cs,
+				Diagnostics:             []string{"data transfer with no open transport channel, cannot determine linked graphsync request"},
+			}
+			tc.transfers = append(tc.transfers, transfer)
+		}
+	}
 }
 
 func (sm *StorageMinerAPI) MarketPendingDeals(ctx context.Context) (api.PendingDealInfo, error) {