diff --git a/app/wails/frontend/src/components/system/network/NetworkSumRateChart.vue b/app/wails/frontend/src/components/system/network/NetworkSumRateChart.vue
index 13578ee..582138e 100644
--- a/app/wails/frontend/src/components/system/network/NetworkSumRateChart.vue
+++ b/app/wails/frontend/src/components/system/network/NetworkSumRateChart.vue
@@ -72,7 +72,7 @@ const chart = reactive({
             overflow: 'truncate',
             ellipsis: '...',
             width: 85,
-            formatter(value,index){
+            formatter(value){
                 return `${bytesToSizeWithUnit(value)}/s`
             }
         },
diff --git a/app/wails/frontend/src/utils/file/file.ts b/app/wails/frontend/src/utils/file/file.ts
index 98db650..4a8d86d 100644
--- a/app/wails/frontend/src/utils/file/file.ts
+++ b/app/wails/frontend/src/utils/file/file.ts
@@ -69,7 +69,7 @@ export function convertToFileSizeWithUnit(anySize:string, defaultUnit:FileUnitTy
 }
 
 export function bytesToSizeWithUnit(byteSize?:number){
-    if(byteSize == null){
+    if(byteSize == null || byteSize < 0){
         return `0${FileUnit.B.unit}`
     }
 
@@ -78,7 +78,7 @@ export function bytesToSizeWithUnit(byteSize?:number){
     if(targetUnitIndex > 0){
         targetUnit = Object.values(FileUnit)[targetUnitIndex - 1]
     } else {
-        targetUnit = Object.values(FileUnit)[targetUnitIndex]
+        targetUnit = Object.values(FileUnit)[0]
     }
     return `${calcSize(byteSize,targetUnit)} ${targetUnit.unit}`
 }
diff --git a/app/wails/frontend/src/utils/system/network.ts b/app/wails/frontend/src/utils/system/network.ts
index 7330aad..7756d04 100644
--- a/app/wails/frontend/src/utils/system/network.ts
+++ b/app/wails/frontend/src/utils/system/network.ts
@@ -10,10 +10,13 @@ let network = reactive({
     },
     sumCounter: {
         rate: {
-            recv: 0,
-            sent: 0,
+            recv: -1,
+            sent: -1,
+        },
+        data: <IOCountersStat>{
+            bytesRecv: -1,
+            bytesSent: -1
         },
-        data: <IOCountersStat>{},
         interval: <any>undefined
     }
 })
@@ -23,8 +26,14 @@ function loopNetworkSumCounter(){
     clearInterval(network.sumCounter.interval)
     function loop(){
         GetNetworkCounter(true).then(result=> {
-            network.sumCounter.rate.recv = result[0].bytesRecv - (network.sumCounter.data.bytesRecv || 0)
-            network.sumCounter.rate.sent = result[0].bytesSent - (network.sumCounter.data.bytesSent || 0)
+            let recv = result[0].bytesRecv || 0
+            let sent = result[0].bytesSent || 0
+
+            network.sumCounter.data.bytesRecv = network.sumCounter.data.bytesRecv == -1?recv:network.sumCounter.data.bytesRecv
+            network.sumCounter.data.bytesSent = network.sumCounter.data.bytesSent == -1?sent:network.sumCounter.data.bytesSent
+
+            network.sumCounter.rate.recv = recv - network.sumCounter.data.bytesRecv
+            network.sumCounter.rate.sent = sent - network.sumCounter.data.bytesSent
 
             network.sumCounter.data = result[0]
         })