diff --git a/reg-tests/http-messaging/protocol_upgrade.vtc b/reg-tests/http-messaging/protocol_upgrade.vtc
index 46418a749..2fe65e717 100644
--- a/reg-tests/http-messaging/protocol_upgrade.vtc
+++ b/reg-tests/http-messaging/protocol_upgrade.vtc
@@ -232,8 +232,10 @@ client c2_h2 -connect ${hap_frt_h2_sock} {
 		  -scheme "http" \
 		  -url "/" \
 		  -hdr ":authority" "127.0.0.1" \
-		  -hdr ":protocol" "custom_protocol"
+		  -hdr ":protocol" "custom_protocol" \
+		  -nostrend
 
+		rxwinup
 		rxhdrs
 		expect resp.status == 200
 	} -run
@@ -256,8 +258,10 @@ client c3_h2_h1 -connect ${hap_frt_h2_h1_sock} {
 		  -scheme "http" \
 		  -url "/" \
 		  -hdr ":authority" "127.0.0.1" \
-		  -hdr ":protocol" "custom_protocol"
+		  -hdr ":protocol" "custom_protocol" \
+		  -nostrend
 
+		rxwinup
 		rxhdrs
 		expect resp.status == 200
 	} -run
@@ -348,7 +352,8 @@ client c9_h2c -connect ${hap_frt_h2_h1_sock} {
 		  -scheme "http" \
 		  -url "/" \
 		  -hdr ":authority" "127.0.0.1" \
-		  -hdr ":protocol" "h2c"
+		  -hdr ":protocol" "h2c" \
+		  -nostrend
 
 		rxrst
 		expect rst.err == 1
diff --git a/reg-tests/http-messaging/websocket.vtc b/reg-tests/http-messaging/websocket.vtc
index e21ddd5bb..9567ea577 100644
--- a/reg-tests/http-messaging/websocket.vtc
+++ b/reg-tests/http-messaging/websocket.vtc
@@ -190,8 +190,10 @@ client c4 -connect ${hap_fe3_sock} {
 		  -scheme "http" \
 		  -url "/" \
 		  -hdr ":authority" "127.0.0.1" \
-		  -hdr ":protocol" "websocket"
+		  -hdr ":protocol" "websocket" \
+		  -nostrend
 
+		rxwinup
 		rxhdrs
 		expect resp.status == 200
 	} -run
@@ -216,8 +218,10 @@ client c5 -connect ${hap_fe4_sock} {
 		  -scheme "http" \
 		  -url "/" \
 		  -hdr ":authority" "127.0.0.1" \
-		  -hdr ":protocol" "websocket"
+		  -hdr ":protocol" "websocket" \
+		  -nostrend
 
+		rxwinup
 		rxhdrs
 		expect resp.status == 502
 	} -run