diff --git a/lib/Hoymiles/src/HoymilesRadio.cpp b/lib/Hoymiles/src/HoymilesRadio.cpp
index 2b3f108..d264669 100644
--- a/lib/Hoymiles/src/HoymilesRadio.cpp
+++ b/lib/Hoymiles/src/HoymilesRadio.cpp
@@ -91,7 +91,7 @@ void HoymilesRadio::loop()
         if (nullptr != inv) {
             uint8_t verifyResult = inv->verifyAllFragments();
             if (verifyResult == FRAGMENT_ALL_MISSING) {
-                if (_commandQueue.front().get()->getSendCount() < MAX_RESEND_COUNT) {
+                if (_commandQueue.front().get()->getSendCount() <= MAX_RESEND_COUNT) {
                     Serial.println(F("Nothing received, resend whole request"));
                     sendLastPacketAgain();
                 } else {
diff --git a/lib/Hoymiles/src/HoymilesRadio.h b/lib/Hoymiles/src/HoymilesRadio.h
index 0682dbf..4db5df5 100644
--- a/lib/Hoymiles/src/HoymilesRadio.h
+++ b/lib/Hoymiles/src/HoymilesRadio.h
@@ -14,7 +14,7 @@ using namespace std;
 // number of fragments hold in buffer
 #define FRAGMENT_BUFFER_SIZE 30
 
-#define MAX_RESEND_COUNT 3
+#define MAX_RESEND_COUNT 4
 
 #ifndef HOYMILES_PIN_MISO
 #define HOYMILES_PIN_MISO 19