diff --git a/fr-net/FRNET_Tests.ttcn b/fr-net/FRNET_Tests.ttcn
index 614750f..0a6af59 100644
--- a/fr-net/FRNET_Tests.ttcn
+++ b/fr-net/FRNET_Tests.ttcn
@@ -88,8 +88,8 @@
 
 private function f_init_gb(inout GbInstance gb, charstring id, integer offset) runs on test_CT {
 	var charstring id_idx := id & int2str(offset);
-	gb.vc_NS := NS_CT.create(id_idx & "-NSemu");
-	gb.vc_BSSGP := BSSGP_CT.create(id_idx & "-BSSGPemu");
+	gb.vc_NS := NS_CT.create(id_idx & "-NSemu") alive;
+	gb.vc_BSSGP := BSSGP_CT.create(id_idx & "-BSSGPemu") alive;
 	connect(gb.vc_BSSGP:BSCP, gb.vc_NS:NS_SP);
 	gb.vc_NS.start(NSStart(mp_nsconfig[offset], id_idx));
 	gb.vc_BSSGP.start(BssgpStart(gb.cfg, testcasename()));
diff --git a/fr/FR_Tests.ttcn b/fr/FR_Tests.ttcn
index 1e662fe..b7a56c3 100644
--- a/fr/FR_Tests.ttcn
+++ b/fr/FR_Tests.ttcn
@@ -89,8 +89,8 @@
 /* initialize one Gb interface */
 private function f_init_gb(inout GbInstance gb, charstring id, integer offset) runs on test_CT {
 	var charstring id_idx := id & int2str(offset);
-	gb.vc_NS := NS_CT.create(id_idx & "-NSemu");
-	gb.vc_BSSGP := BSSGP_CT.create(id_idx & "-BSSGPemu");
+	gb.vc_NS := NS_CT.create(id_idx & "-NSemu") alive;
+	gb.vc_BSSGP := BSSGP_CT.create(id_idx & "-BSSGPemu") alive;
 	connect(gb.vc_BSSGP:BSCP, gb.vc_NS:NS_SP);
 	gb.vc_NS.start(NSStart(mp_nsconfig[offset], id_idx));
 	connect(self:BSSGP_PROC[offset], gb.vc_BSSGP:PROC);
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 3386f71..c29095f 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -257,8 +257,8 @@
 }
 
 private function f_init_gb(inout GbInstance gb, charstring id, integer offset) runs on test_CT {
-	gb.vc_NS := NS_CT.create(id & "-NS" & int2str(offset));
-	gb.vc_BSSGP := BSSGP_CT.create(id & "-BSSGP" & int2str(offset));
+	gb.vc_NS := NS_CT.create(id & "-NS" & int2str(offset)) alive;
+	gb.vc_BSSGP := BSSGP_CT.create(id & "-BSSGP" & int2str(offset)) alive;
 	/* connect lower end of BSSGP emulation with NS upper port */
 	connect(gb.vc_BSSGP:BSCP, gb.vc_NS:NS_SP);