diff --git a/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/flows/MirrorEndpointsSpec.groovy b/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/flows/MirrorEndpointsSpec.groovy
index da40d3c044..2e70073439 100644
--- a/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/flows/MirrorEndpointsSpec.groovy
+++ b/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/flows/MirrorEndpointsSpec.groovy
@@ -1,6 +1,5 @@
 package org.openkilda.functionaltests.spec.flows
 
-
 import static org.junit.jupiter.api.Assumptions.assumeFalse
 import static org.junit.jupiter.api.Assumptions.assumeTrue
 import static org.openkilda.functionaltests.extension.tags.Tag.HARDWARE
@@ -217,7 +216,8 @@ class MirrorEndpointsSpec extends HealthCheckSpecification {
         [swPair, mirrorDirection] << [getUniqueSwitchPairs({ !it.src.traffGenPorts.isEmpty() && !it.dst.traffGenPorts.isEmpty() }),
                                       [FORWARD, REVERSE]].combinations()
         //means there is no second traffgen for target switch and we are not checking the counter on receiving interface
-        trafficDisclaimer = swPair.src.traffGenPorts.size() < 2 ? " !WARN: No mirrored traffic check!" : ""
+        //flaky test [WB5164-E NW570.7.2]-FORWARD: disable traffic check
+        trafficDisclaimer = swPair.src.traffGenPorts.size() < 2 || swPair.src.isWb5164() && mirrorDirection == FORWARD ? " !WARN: No mirrored traffic check!" : ""
         description = "[${swPair.src.hwSwString()}] $mirrorDirection $trafficDisclaimer"
     }
 
diff --git a/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/server42/Server42IslRttSpec.groovy b/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/server42/Server42IslRttSpec.groovy
index 04c580a5a2..88d0dc7476 100644
--- a/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/server42/Server42IslRttSpec.groovy
+++ b/src-java/testing/functional-tests/src/test/groovy/org/openkilda/functionaltests/spec/server42/Server42IslRttSpec.groovy
@@ -114,6 +114,7 @@ class Server42IslRttSpec extends HealthCheckSpecification {
     @Tags([TOPOLOGY_DEPENDENT,
     HARDWARE //Temporarily disable for virtual. wait for real virtual s42
     ])
+    @Ignore("https://github.com/telstra/open-kilda/issues/5776")
     def "ISL RTT stats are available if both endpoints are connected to the same server42 (same pop)"() {
         given: "An active ISL with both switches connected to the same server42 instance"
         def swPair = allServer42Pairs.shuffled().find {