diff --git a/src/CHANGES.md b/src/CHANGES.md
index 418acb84..74401b87 100644
--- a/src/CHANGES.md
+++ b/src/CHANGES.md
@@ -1,5 +1,10 @@
 # Development Changes
 
+## 0.8.20 - 2023-12-12
+* improved HM communication #1259 #1249
+* fix `loadDefaults` for ethernet builds #1263
+* don't loop through radios which aren't in use #1264
+
 ## 0.8.19 - 2023-12-11
 * added ms to serial log
 * added (debug) option to configure gap between inverter requests
diff --git a/src/config/settings.h b/src/config/settings.h
index a2851bd0..92ad1195 100644
--- a/src/config/settings.h
+++ b/src/config/settings.h
@@ -67,16 +67,13 @@ typedef struct {
     bool darkMode;
     bool schedReboot;
 
-#if defined(ETHERNET)
-    // ethernet
-
-#else /* defined(ETHERNET) */
+#if !defined(ETHERNET)
     // wifi
     char stationSsid[SSID_LEN];
     char stationPwd[PWD_LEN];
     char apPwd[PWD_LEN];
     bool isHidden;
-#endif /* defined(ETHERNET) */
+#endif /* !defined(ETHERNET) */
 
     cfgIp_t ip;
 } cfgSys_t;
diff --git a/src/defines.h b/src/defines.h
index 24bcc8a5..79555749 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       8
-#define VERSION_PATCH       19
+#define VERSION_PATCH       20
 
 //-------------------------------------
 typedef struct {
diff --git a/src/hm/Communication.h b/src/hm/Communication.h
index e8c17d1e..23934c0c 100644
--- a/src/hm/Communication.h
+++ b/src/hm/Communication.h
@@ -51,6 +51,11 @@ class Communication : public CommQueue<> {
                 uint16_t timeout     = (q->iv->ivGen == IV_MI) ? MI_TIMEOUT : ((q->iv->mGotFragment && q->iv->mGotLastMsg) || mIsResend) ? SINGLEFR_TIMEOUT : DEFAULT_TIMEOUT;
                 uint16_t timeout_min = (q->iv->ivGen == IV_MI) ? MI_TIMEOUT : ((q->iv->mGotFragment || mIsResend)) ? SINGLEFR_TIMEOUT : FRSTMSG_TIMEOUT;
 
+                /*if(mDebugState != mState) {
+                    DPRINT(DBG_INFO, F("State: "));
+                    DBGHEXLN((uint8_t)(mState));
+                    mDebugState = mState;
+                }*/
                 switch(mState) {
                     case States::RESET:
                         if(millis() < mWaitTimeout)
@@ -99,7 +104,7 @@ class Communication : public CommQueue<> {
                         break;
 
                     case States::WAIT:
-                        if(millis() > mWaitTimeout_min) {
+                        /*if(millis() > mWaitTimeout_min) {
                             if(mIsResend) { // we already have been through...
                                 mWaitTimeout = mWaitTimeout_min;
                             } else if(q->iv->mGotFragment) { // nothing received yet?
@@ -120,7 +125,7 @@ class Communication : public CommQueue<> {
                                 break;
                             }
 
-                        }
+                        }*/
                         if(millis() < mWaitTimeout)
                             return;
                         mState = States::CHECK_FRAMES;
@@ -200,7 +205,7 @@ class Communication : public CommQueue<> {
                             q->iv->radio->mBufCtrl.pop();
                             yield();
                         }
-                        if((0 == q->attempts) && (!q->iv->mGotFragment))
+                        if(0 == q->attempts)
                             closeRequest(q, false, true);
                         else {
                             if(q->iv->ivGen != IV_MI)
@@ -459,7 +464,7 @@ class Communication : public CommQueue<> {
                 mWaitTimeout = millis() + SINGLEFR_TIMEOUT; // timeout
                 mState = States::WAIT;
             } else {
-                add(q, true);
+                //add(q, true);
                 closeRequest(q, false, true);
             }
         }
@@ -476,7 +481,7 @@ class Communication : public CommQueue<> {
             }
             mWaitTimeout = millis() + *mInverterGap;
 
-            cmdDone(delCmd);
+            cmdDone(q->delOnPop);
             q->iv->mGotFragment = false;
             q->iv->mGotLastMsg  = false;
             q->iv->miMultiParts = 0;
@@ -839,6 +844,8 @@ class Communication : public CommQueue<> {
         payloadListenerType mCbPayload = NULL;
         alarmListenerType mCbAlarm = NULL;
         Heuristic mHeu;
+
+        //States mDebugState = States::START;
 };
 
 #endif /*__COMMUNICATION_H__*/