diff --git a/sys/dev/hyperv/netvsc/hn_rndis.h b/sys/dev/hyperv/netvsc/hn_rndis.h
--- a/sys/dev/hyperv/netvsc/hn_rndis.h
+++ b/sys/dev/hyperv/netvsc/hn_rndis.h
@@ -46,5 +46,6 @@
 int		hn_rndis_set_rxfilter(struct hn_softc *sc, uint32_t filter);
 void		hn_rndis_rx_ctrl(struct hn_softc *sc, const void *data,
 		    int dlen);
+int		hn_rndis_reconf_offload(struct hn_softc *sc, int mtu);
 
 #endif  /* !_HN_RNDIS_H_ */
diff --git a/sys/dev/hyperv/netvsc/hn_rndis.c b/sys/dev/hyperv/netvsc/hn_rndis.c
--- a/sys/dev/hyperv/netvsc/hn_rndis.c
+++ b/sys/dev/hyperv/netvsc/hn_rndis.c
@@ -579,6 +579,12 @@
 	return (error);
 }
 
+int
+hn_rndis_reconf_offload(struct hn_softc *sc, int mtu)
+{
+	return(hn_rndis_conf_offload(sc, mtu));
+}
+
 static int
 hn_rndis_conf_offload(struct hn_softc *sc, int mtu)
 {
@@ -725,7 +731,8 @@
 
 	/* RSC offload */
 	if (hwcaps.ndis_hdr.ndis_rev >= NDIS_OFFLOAD_PARAMS_REV_3) {
-		if (hwcaps.ndis_rsc.ndis_ip4 && hwcaps.ndis_rsc.ndis_ip6) {
+		if (hwcaps.ndis_rsc.ndis_ip4 && hwcaps.ndis_rsc.ndis_ip6 &&
+		    sc->hn_rsc_ctrl) {
 			params.ndis_rsc_ip4 = NDIS_OFFLOAD_RSC_ON;
 			params.ndis_rsc_ip6 = NDIS_OFFLOAD_RSC_ON;
 		} else {
diff --git a/sys/dev/hyperv/netvsc/if_hn.c b/sys/dev/hyperv/netvsc/if_hn.c
--- a/sys/dev/hyperv/netvsc/if_hn.c
+++ b/sys/dev/hyperv/netvsc/if_hn.c
@@ -454,6 +454,8 @@
 static void			hn_start_txeof_taskfunc(void *, int);
 #endif
 
+static int			hn_rsc_sysctl(SYSCTL_HANDLER_ARGS);
+
 SYSCTL_NODE(_hw, OID_AUTO, hn, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
     "Hyper-V network interface");
 
@@ -2370,6 +2372,10 @@
 		    "Accurate BPF for transparent VF");
 	}
 
+	SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rsc_switch",
+	    CTLTYPE_UINT | CTLFLAG_RW, sc, 0, hn_rsc_sysctl, "A",
+	    "switch to rsc");
+
 	/*
 	 * Setup the ifmedia, which has been initialized earlier.
 	 */
@@ -4567,6 +4573,30 @@
 	return sysctl_handle_string(oidp, filter_str, sizeof(filter_str), req);
 }
 
+static int
+hn_rsc_sysctl(SYSCTL_HANDLER_ARGS)
+{
+	struct hn_softc *sc = arg1;
+	uint32_t mtu;
+	int error;
+	HN_LOCK(sc);
+	error = hn_rndis_get_mtu(sc, &mtu);
+	if (error) {
+		if_printf(sc->hn_ifp, "failed to get mtu\n");
+		goto back;
+	}
+	error = SYSCTL_OUT(req, &(sc->hn_rsc_ctrl), sizeof(sc->hn_rsc_ctrl));
+	if (error || req->newptr == NULL)
+		goto back;
+
+	error = SYSCTL_IN(req, &(sc->hn_rsc_ctrl), sizeof(sc->hn_rsc_ctrl));
+	if (error)
+		goto back;
+	error = hn_rndis_reconf_offload(sc, mtu);
+back:
+	HN_UNLOCK(sc);
+	return (error);
+}
 #ifndef RSS
 
 static int
diff --git a/sys/dev/hyperv/netvsc/if_hnvar.h b/sys/dev/hyperv/netvsc/if_hnvar.h
--- a/sys/dev/hyperv/netvsc/if_hnvar.h
+++ b/sys/dev/hyperv/netvsc/if_hnvar.h
@@ -282,6 +282,11 @@
 	u_int			hn_saved_tsomax;
 	u_int			hn_saved_tsosegcnt;
 	u_int			hn_saved_tsosegsz;
+
+	/*
+	 * RSC switch, default off
+	 */
+	u_int			hn_rsc_ctrl;
 };
 
 #define HN_FLAG_RXBUF_CONNECTED		0x0001