diff --git a/internal/poller/interface_homelan.go b/internal/poller/interface_homelan.go
index 666fdc6..02e882b 100644
--- a/internal/poller/interface_homelan.go
+++ b/internal/poller/interface_homelan.go
@@ -87,7 +87,7 @@ func (im *InterfaceHomeLanMbits) Poll(ctx context.Context) error {
 			Rx: stats.Status.BytesReceived,
 		}
 
-		if itf.IsWAN() {
+		if !itf.IsWAN() {
 			counters.Swap()
 		}
 
diff --git a/internal/poller/interface_netdev.go b/internal/poller/interface_netdev.go
index 2dec0a5..306e91f 100644
--- a/internal/poller/interface_netdev.go
+++ b/internal/poller/interface_netdev.go
@@ -76,7 +76,7 @@ func (im *InterfaceNetDevMbits) Poll(ctx context.Context) error {
 			Rx: stats.Status.RxBytes,
 		}
 
-		if itf.IsWAN() {
+		if !itf.IsWAN() {
 			counters.Swap()
 		}