diff --git a/R/connectivity.R b/R/connectivity.R
index 6cabca17..8eac5bff 100644
--- a/R/connectivity.R
+++ b/R/connectivity.R
@@ -15,7 +15,7 @@ neuprint_get_adjacency_matrix <- function(bodyids, dataset = NULL, all_segments
       "WHERE n.bodyId IN input AND m.bodyId IN input",
       "RETURN n.bodyId AS upstream, m.bodyId AS downstream, c.weight AS weight, n.%s AS upName, m.%s AS downName"
     ),
-    id2json(bodyids),
+    id2json(bodyids, uniqueids = TRUE),
     all_segments.json,
     namefield,
     namefield
@@ -50,6 +50,8 @@ neuprint_connection_table <- function(bodyids, prepost = c("PRE","POST"), roi =
   prepost = match.arg(prepost)
   conn=neuprint_login(conn)
   all_segments.json = ifelse(all_segments,"Segment","Neuron")
+  #
+  # bodyids=unique(id2bit64(bodyids))
   if(!is.null(roi)){
     roicheck = neuprint_check_roi(rois=roi, dataset = dataset, conn = conn, ...)
   }
@@ -61,6 +63,8 @@ neuprint_connection_table <- function(bodyids, prepost = c("PRE","POST"), roi =
       progress = FALSE,
       dataset = dataset, conn = conn, ...),
       error = function(e) NULL)))
+    d <-  d[order(d$weight,decreasing=TRUE),]
+    rownames(d) <- NULL
     return(d)
   }
   cypher = sprintf(paste("WITH %s AS bodyIds UNWIND bodyIds AS bodyId",
@@ -85,6 +89,7 @@ neuprint_connection_table <- function(bodyids, prepost = c("PRE","POST"), roi =
   d$weight <- as.integer(d$weight)
   d$prepost <-  ifelse(prepost=="PRE",0,1)
   d <-  d[order(d$weight,decreasing=TRUE),]
+  rownames(d) <- NULL
   d[,c("bodyid", "partner", "roi","weight", "prepost")]
 }
 
diff --git a/tests/testthat/test-connectivity.R b/tests/testthat/test-connectivity.R
new file mode 100644
index 00000000..be83a28b
--- /dev/null
+++ b/tests/testthat/test-connectivity.R
@@ -0,0 +1,10 @@
+skip_if(as.logical(Sys.getenv("SKIP_NP_SERVER_TESTS")))
+
+test_that("neuprint_connection_table works", {
+  expect_is(t1 <- neuprint_connection_table(c(818983130, 1796818119)),
+            'data.frame')
+  # ensure we get the same answer with progress=TRUE
+  expect_equal(neuprint_connection_table(c(818983130, 1796818119),
+                                         progress = TRUE),
+               t1)
+})