diff --git a/src/test/net_tests.cpp b/src/test/net_tests.cpp
--- a/src/test/net_tests.cpp
+++ b/src/test/net_tests.cpp
@@ -219,6 +219,11 @@
                    avalancheOutboundsCount == expectedAvalancheOutboundsCount;
         });
 
+        interruptNet();
+        if (threadOpenConnections.joinable()) {
+            threadOpenConnections.join();
+        }
+
         // Check each node belongs to a different group
         std::set<std::vector<uint8_t>> groups;
         ForEachNode([&](const CNode *pnode) {
@@ -227,11 +232,6 @@
         BOOST_CHECK_EQUAL(groups.size(), expectedOutboundFullRelayCount +
                                              expectedAvalancheOutboundsCount);
 
-        interruptNet();
-        if (threadOpenConnections.joinable()) {
-            threadOpenConnections.join();
-        }
-
         return ret;
     }
 };