diff --git a/pio/http-uploader.py b/pio/http-uploader.py
index b80ee4a09..7c204cf1f 100644
--- a/pio/http-uploader.py
+++ b/pio/http-uploader.py
@@ -4,9 +4,11 @@ from base64 import b64decode
 
 env.Replace(UPLOADER="pio\espupload.py")
 env.Replace(UPLOADERFLAGS="")
-env.Replace(UPLOADCMD="$UPLOADER -u " + b64decode(ARGUMENTS.get("UPLOAD_PORT")) + " -f $SOURCES")
+env.Replace(UPLOADCMD="$UPLOADER -u $UPLOAD_PORT -f $SOURCES")
 
 '''
+env.Replace(UPLOADCMD="$UPLOADER -u domus1:80/api/upload-arduino.php -f $SOURCES")
+env.Replace(UPLOADCMD="$UPLOADER -u " + b64decode(ARGUMENTS.get("UPLOAD_PORT")) + " -f $SOURCES")
 env.Replace(UPLOADCMD="pio\espupload.py -f $SOURCES") # Windows
 env.Replace(UPLOADCMD="pio/espupload.py -f $SOURCES") # Linux
 '''
\ No newline at end of file
diff --git a/platformio.ini b/platformio.ini
index a5c0946d1..67fe2ea0e 100755
--- a/platformio.ini
+++ b/platformio.ini
@@ -11,34 +11,34 @@
 src_dir = sonoff
 
 ; *** Uncomment one of the lines below to build/upload only one environment
-;env_default = sonoff
-;env_default = sonoff-minimal
-;env_default = sonoff-basic
-;env_default = sonoff-classic
-;env_default = sonoff-knx
-;env_default = sonoff-sensors
-;env_default = sonoff-display
-;env_default = sonoff-BG
-;env_default = sonoff-BR
-;env_default = sonoff-CN
-;env_default = sonoff-CZ
-;env_default = sonoff-DE
-;env_default = sonoff-ES
-;env_default = sonoff-FR
-;env_default = sonoff-GR
-;env_default = sonoff-HE
-;env_default = sonoff-HU
-;env_default = sonoff-IT
-;env_default = sonoff-KO
-;env_default = sonoff-NL
-;env_default = sonoff-PL
-;env_default = sonoff-PT
-;env_default = sonoff-RU
-;env_default = sonoff-SE
-;env_default = sonoff-SK
-;env_default = sonoff-TR
-;env_default = sonoff-TW
-;env_default = sonoff-UK
+;default_envs = sonoff
+;default_envs = sonoff-minimal
+;default_envs = sonoff-basic
+;default_envs = sonoff-classic
+;default_envs = sonoff-knx
+;default_envs = sonoff-sensors
+;default_envs = sonoff-display
+;default_envs = sonoff-BG
+;default_envs = sonoff-BR
+;default_envs = sonoff-CN
+;default_envs = sonoff-CZ
+;default_envs = sonoff-DE
+;default_envs = sonoff-ES
+;default_envs = sonoff-FR
+;default_envs = sonoff-GR
+;default_envs = sonoff-HE
+;default_envs = sonoff-HU
+;default_envs = sonoff-IT
+;default_envs = sonoff-KO
+;default_envs = sonoff-NL
+;default_envs = sonoff-PL
+;default_envs = sonoff-PT
+;default_envs = sonoff-RU
+;default_envs = sonoff-SE
+;default_envs = sonoff-SK
+;default_envs = sonoff-TR
+;default_envs = sonoff-TW
+;default_envs = sonoff-UK
 
 [esp82xx_defaults]
 build_flags               = -D NDEBUG
diff --git a/sonoff/_changelog.ino b/sonoff/_changelog.ino
index 6bed2c3b5..0a0f6c90f 100644
--- a/sonoff/_changelog.ino
+++ b/sonoff/_changelog.ino
@@ -1,4 +1,9 @@
-/* 6.5.0.13 20190527
+/* 6.5.0.14 20190602
+ * Change webserver HTML input, button, textarea, and select name based on id
+ * Fix webserver multiple Javascript window.onload functionality
+ * Fix PZem startup issue (#5875)
+ *
+ * 6.5.0.13 20190527
  * Add command SetOption38 6..255 to set IRReceive protocol detection sensitivity mimizing UNKNOWN protocols (#5853)
  * Fix missing white channel for WS2812 (#5869)
  * Add reset of Energy values when connection to sensor is lost for over 4 seconds (#5874, #5881)
diff --git a/sonoff/settings.ino b/sonoff/settings.ino
index f2bf1290e..4e7af0d4e 100644
--- a/sonoff/settings.ino
+++ b/sonoff/settings.ino
@@ -119,6 +119,9 @@
 #ifndef COLOR_TIMER_TAB_BACKGROUND
 #define COLOR_TIMER_TAB_BACKGROUND  "#999"     // Config timer tab background color - Light grey
 #endif
+#ifndef IR_RCV_MIN_UNKNOWN_SIZE
+#define IR_RCV_MIN_UNKNOWN_SIZE     6          // Set the smallest sized "UNKNOWN" message packets we actually care about (default 6, max 255)
+#endif
 
 enum WebColors {
   COL_TEXT, COL_BACKGROUND, COL_FORM,
diff --git a/sonoff/sonoff_version.h b/sonoff/sonoff_version.h
index 8b7c27bfc..6c475febc 100644
--- a/sonoff/sonoff_version.h
+++ b/sonoff/sonoff_version.h
@@ -20,6 +20,6 @@
 #ifndef _SONOFF_VERSION_H_
 #define _SONOFF_VERSION_H_
 
-const uint32_t VERSION = 0x0605000D;
+const uint32_t VERSION = 0x0605000E;
 
 #endif  // _SONOFF_VERSION_H_
diff --git a/sonoff/xdrv_01_webserver.ino b/sonoff/xdrv_01_webserver.ino
index e71e4016d..66e043ecf 100644
--- a/sonoff/xdrv_01_webserver.ino
+++ b/sonoff/xdrv_01_webserver.ino
@@ -58,13 +58,24 @@ const char HTTP_HEAD[] PROGMEM =
   "function eb(s){"
     "return document.getElementById(s);"  // Save code space
   "}"
- "function qs(s){"                                               // Alias to save code space
+  "function qs(s){"                       // Alias to save code space
     "return document.querySelector(s);"
   "}"
-  "function idn(){"
-    "var t=0,i=document.querySelectorAll('input,button,textarea,select'); while(i.length>=t){ if(i[t]) {i[t]['name']=(i[t].hasAttribute('id')&&(!i[t].hasAttribute('name')))?i[t]['id']:i[t]['name'];}t++;}"
-  "}"
-  "window.onload=idn;idn();";
+
+  // https://www.htmlgoodies.com/beyond/javascript/article.php/3724571/Using-Multiple-JavaScript-Onload-Functions.htm
+  "function wl(f){"                       // Execute multiple window.onload
+    "var o=window.onload;"
+    "if(typeof window.onload!='function'){"
+      "window.onload=f;"
+    "}else{"
+      "window.onload=function(){"
+        "if(o){"
+          "o();"
+        "}"
+        "f();"
+      "}"
+    "}"
+  "}";
 
 const char HTTP_SCRIPT_COUNTER[] PROGMEM =
   "var cn=180;"                           // seconds
@@ -75,7 +86,7 @@ const char HTTP_SCRIPT_COUNTER[] PROGMEM =
       "setTimeout(u,1000);"
     "}"
   "}"
-  "window.onload=u;";
+  "wl(u);";
 
 const char HTTP_SCRIPT_ROOT[] PROGMEM =
   "function la(p){"
@@ -102,7 +113,7 @@ const char HTTP_SCRIPT_ROOT[] PROGMEM =
   "function lc(p){"
     "la('&t='+p);"                        // &t related to WebGetArg("t", tmp, sizeof(tmp));
   "}"
-  "window.onload=la();";
+  "wl(la);";
 
 const char HTTP_SCRIPT_WIFI[] PROGMEM =
   "function c(l){"
@@ -152,7 +163,7 @@ const char HTTP_SCRIPT_CONSOL[] PROGMEM =
     "lt=setTimeout(l,%d);"
     "return false;"
   "}"
-  "window.onload=l;";
+  "wl(l);";
 
 const char HTTP_MODULE_TEMPLATE_REPLACE[] PROGMEM =
   "}2%d'>%s (%d}3";                       // }2 and }3 are used in below os.replace
@@ -218,7 +229,10 @@ const char HTTP_SCRIPT_TEMPLATE[] PROGMEM =
     "sk(17,99);"                          // 17 = WEMOS
     "st(" STR(USER_MODULE) ");"
   "}"
-  "window.onload=ld('tp?m=1',x2);";       // ?m related to WebServer->hasArg("m")
+  "function sl(){"
+    "ld('tp?m=1',x2);"                    // ?m related to WebServer->hasArg("m")
+  "}"
+  "wl(sl);";
 
 const char HTTP_SCRIPT_MODULE1[] PROGMEM =
   "function x1(a){"                       // Module Type
@@ -240,7 +254,7 @@ const char HTTP_SCRIPT_MODULE2[] PROGMEM =
       "ld('md?a=1',x3);"                  // ?a related to WebServer->hasArg("a")
     "}"
   "}"
-  "window.onload=sl;";
+  "wl(sl);";
 
 const char HTTP_SCRIPT_INFO_BEGIN[] PROGMEM =
   "function i(){"
@@ -250,11 +264,22 @@ const char HTTP_SCRIPT_INFO_END[] PROGMEM =
     "s=o.replace(/}1/g,\"</td></tr><tr><th>\").replace(/}2/g,\"</th><td>\");"
     "eb('i').innerHTML=s;"
   "}"
-  "window.onload=i;";
+  "wl(i);";
+
+const char HTTP_HEAD_LAST_SCRIPT[] PROGMEM =
+  "function id(){"                        // Add label name='' based on provided id=''
+    "var t=0,i=document.querySelectorAll('input,button,textarea,select');"
+    "while(i.length>=t){"
+      "if(i[t]){"
+        "i[t]['name']=(i[t].hasAttribute('id')&&(!i[t].hasAttribute('name')))?i[t]['id']:i[t]['name'];"
+      "}"
+      "t++;"
+    "}"
+  "}"
+  "wl(id);"                               // Add name='' to any id='' in input,button,textarea,select
+  "</script>";
 
 const char HTTP_HEAD_STYLE1[] PROGMEM =
-  "</script>"
-
   "<style>"
   "div,fieldset,input,select{padding:5px;font-size:1em;}"
   "fieldset{background:#%06x;}"  // COLOR_FORM, Also update HTTP_TIMER_STYLE
@@ -322,7 +347,7 @@ const char HTTP_FORM_TEMPLATE_FLAG[] PROGMEM =
 const char HTTP_FORM_MODULE[] PROGMEM =
   "<fieldset><legend><b>&nbsp;" D_MODULE_PARAMETERS "&nbsp;</b></legend>"
   "<form method='get' action='md'>"
-  "<p></p><b>" D_MODULE_TYPE "</b> (%s)<br><select id='g99' name='g99'></select><br>"
+  "<p></p><b>" D_MODULE_TYPE "</b> (%s)<br><select id='g99'></select><br>"
   "<br><table>";
 
 const char HTTP_FORM_WIFI[] PROGMEM =
@@ -725,6 +750,8 @@ void WSContentSendStyle_P(const char* formatP, ...)
       WSContentSend_P(HTTP_SCRIPT_COUNTER);
     }
   }
+  WSContentSend_P(HTTP_HEAD_LAST_SCRIPT);
+
   WSContentSend_P(HTTP_HEAD_STYLE1, WebColor(COL_FORM), WebColor(COL_INPUT), WebColor(COL_INPUT_TEXT), WebColor(COL_INPUT), WebColor(COL_INPUT_TEXT), WebColor(COL_CONSOLE), WebColor(COL_CONSOLE_TEXT), WebColor(COL_BACKGROUND));
   WSContentSend_P(HTTP_HEAD_STYLE2, WebColor(COL_BUTTON), WebColor(COL_BUTTON_TEXT), WebColor(COL_BUTTON_HOVER), WebColor(COL_BUTTON_RESET), WebColor(COL_BUTTON_RESET_HOVER), WebColor(COL_BUTTON_SAVE), WebColor(COL_BUTTON_SAVE_HOVER));
   if (formatP != nullptr) {
@@ -761,7 +788,7 @@ void WSContentSendStyle(void)
 void WSContentButton(uint8_t title_index)
 {
   char action[4];
-  char title[32];
+  char title[64];
 
   if (title_index <= BUTTON_RESET_CONFIGURATION) {
     char confirm[64];
@@ -1126,8 +1153,8 @@ void HandleTemplateConfiguration(void)
   WSContentSend_P(HTTP_TABLE100);
   for (uint8_t i = 0; i < 17; i++) {
     if ((i < 6) || ((i > 8) && (i != 11))) {                // Ignore flash pins GPIO06, 7, 8 and 11
-      WSContentSend_P(PSTR("<tr><td><b><font color='#%06x'>" D_GPIO "%d</font></b></td><td%s><select id='g%d' name='g%d'></select></td></tr>"),
-        ((9==i)||(10==i)) ? WebColor(COL_TEXT_WARNING) : WebColor(COL_TEXT), i, (0==i) ? " style='width:200px'" : "", i, i);
+      WSContentSend_P(PSTR("<tr><td><b><font color='#%06x'>" D_GPIO "%d</font></b></td><td%s><select id='g%d'></select></td></tr>"),
+        ((9==i)||(10==i)) ? WebColor(COL_TEXT_WARNING) : WebColor(COL_TEXT), i, (0==i) ? " style='width:200px'" : "", i);
     }
   }
   WSContentSend_P(PSTR("<tr><td><b><font color='#%06x'>" D_ADC "0</font></b></td><td><select id='g17'></select></td></tr>"), WebColor(COL_TEXT));
@@ -1250,8 +1277,8 @@ void HandleModuleConfiguration(void)
       snprintf_P(stemp, 3, PINS_WEMOS +i*2);
       char sesp8285[40];
       snprintf_P(sesp8285, sizeof(sesp8285), PSTR("<font color='#%06x'>ESP8285</font>"), WebColor(COL_TEXT_WARNING));
-      WSContentSend_P(PSTR("<tr><td style='width:190px'>%s <b>" D_GPIO "%d</b> %s</td><td style='width:176px'><select id='g%d' name='g%d'></select></td></tr>"),
-        (WEMOS==my_module_type)?stemp:"", i, (0==i)? D_SENSOR_BUTTON "1":(1==i)? D_SERIAL_OUT :(3==i)? D_SERIAL_IN :((9==i)||(10==i))? sesp8285 :(12==i)? D_SENSOR_RELAY "1":(13==i)? D_SENSOR_LED "1i":(14==i)? D_SENSOR :"", i, i);
+      WSContentSend_P(PSTR("<tr><td style='width:190px'>%s <b>" D_GPIO "%d</b> %s</td><td style='width:176px'><select id='g%d'></select></td></tr>"),
+        (WEMOS==my_module_type)?stemp:"", i, (0==i)? D_SENSOR_BUTTON "1":(1==i)? D_SERIAL_OUT :(3==i)? D_SERIAL_IN :((9==i)||(10==i))? sesp8285 :(12==i)? D_SENSOR_RELAY "1":(13==i)? D_SENSOR_LED "1i":(14==i)? D_SENSOR :"", i);
     }
   }
 #ifndef USE_ADC_VCC
@@ -1462,7 +1489,7 @@ void HandleLoggingConfiguration(void)
   WSContentStart_P(S_CONFIGURE_LOGGING);
   WSContentSendStyle();
   WSContentSend_P(HTTP_FORM_LOG1);
-  char stemp1[32];
+  char stemp1[45];
   char stemp2[32];
   uint8_t dlevel[3] = { LOG_LEVEL_INFO, LOG_LEVEL_INFO, LOG_LEVEL_NONE };
   for (uint8_t idx = 0; idx < 3; idx++) {
@@ -1470,7 +1497,7 @@ void HandleLoggingConfiguration(void)
     WSContentSend_P(PSTR("<p><b>%s</b> (%s)<br><select id='l%d'>"),
       GetTextIndexed(stemp1, sizeof(stemp1), idx, kLoggingOptions),
       GetTextIndexed(stemp2, sizeof(stemp2), dlevel[idx], kLoggingLevels),
-      idx, idx);
+      idx);
     for (uint8_t i = LOG_LEVEL_NONE; i < LOG_LEVEL_ALL; i++) {
       WSContentSend_P(PSTR("<option%s value='%d'>%d %s</option>"),
         (i == llevel) ? " selected" : "", i, i,
@@ -1535,10 +1562,10 @@ void HandleOtherConfiguration(void)
   if (SONOFF_IFAN02 == my_module_type) { maxfn = 1; }
   for (uint8_t i = 0; i < maxfn; i++) {
     snprintf_P(stemp, sizeof(stemp), PSTR("%d"), i +1);
-    WSContentSend_P(PSTR("<b>" D_FRIENDLY_NAME " %d</b> (" FRIENDLY_NAME "%s)<br><input id='a%d' name='a%d' placeholder='" FRIENDLY_NAME "%s' value='%s'><p></p>"),
+    WSContentSend_P(PSTR("<b>" D_FRIENDLY_NAME " %d</b> (" FRIENDLY_NAME "%s)<br><input id='a%d' placeholder='" FRIENDLY_NAME "%s' value='%s'><p></p>"),
       i +1,
       (i) ? stemp : "",
-      i, i,
+      i,
       (i) ? stemp : "",
       Settings.friendlyname[i]);
   }
diff --git a/sonoff/xdrv_07_domoticz.ino b/sonoff/xdrv_07_domoticz.ino
index 2d7ceb8e0..85980028e 100644
--- a/sonoff/xdrv_07_domoticz.ino
+++ b/sonoff/xdrv_07_domoticz.ino
@@ -455,7 +455,7 @@ void HandleDomoticzConfiguration(void)
     return;
   }
 
-  char stemp[32];
+  char stemp[40];
 
   WSContentStart_P(S_CONFIGURE_DOMOTICZ);
   WSContentSendStyle();
diff --git a/sonoff/xdrv_09_timers.ino b/sonoff/xdrv_09_timers.ino
index 8e14aaebb..e27afeadc 100644
--- a/sonoff/xdrv_09_timers.ino
+++ b/sonoff/xdrv_09_timers.ino
@@ -627,7 +627,7 @@ const char HTTP_TIMER_SCRIPT5[] PROGMEM =
     "}"
     "eb('bt').innerHTML=s;"                                       // Create tabs
     "if(%d>0){"                                                   // Create Output and Action drop down boxes
-      "eb('oa').innerHTML=\"<b>" D_TIMER_OUTPUT "</b>&nbsp;<span><select style='width:60px;' id='d1' name='d1'></select></span>&emsp;<b>" D_TIMER_ACTION "</b>&nbsp;<select style='width:99px;' id='p1' name='p1'></select>\";"
+      "eb('oa').innerHTML=\"<b>" D_TIMER_OUTPUT "</b>&nbsp;<span><select style='width:60px;' id='d1'></select></span>&emsp;<b>" D_TIMER_ACTION "</b>&nbsp;<select style='width:99px;' id='p1'></select>\";"
       "o=qs('#p1');ce('" D_OFF "',o);ce('" D_ON "',o);ce('" D_TOGGLE "',o);"  // Create offset direction select options
 #if defined(USE_RULES) || defined(USE_SCRIPT)
       "ce('" D_RULE "',o);"
@@ -646,11 +646,11 @@ const char HTTP_TIMER_SCRIPT6[] PROGMEM =
     "o=qs('#mw');for(i=0;i<=15;i++){ce((i<10)?('0'+i):i,o);}"     // Create window minutes select options
     "o=qs('#d1');for(i=0;i<%d;i++){ce(i+1,o);}"                   // Create outputs
     "var a='" D_DAY3LIST "';"
-    "s='';for(i=0;i<7;i++){s+=\"<input id='w\"+i+\"' name='w\"+i+\"' type='checkbox'><b>\"+a.substring(i*3,(i*3)+3)+\"</b> \"}"
+    "s='';for(i=0;i<7;i++){s+=\"<input id='w\"+i+\"' type='checkbox'><b>\"+a.substring(i*3,(i*3)+3)+\"</b> \"}"
     "eb('ds').innerHTML=s;"                                       // Create weekdays
     "eb('dP').click();"                                           // Get the element with id='dP' and click on it
   "}"
-  "window.onload=it;";
+  "wl(it);";
 const char HTTP_TIMER_STYLE[] PROGMEM =
   ".tl{float:left;border-radius:0;border:1px solid #%06x;padding:1px;width:6.25%%;}";  // COLOR_FORM, Border color needs to be the same as Fieldset background color from HTTP_HEAD_STYLE1 (transparent won't work)
 const char HTTP_FORM_TIMER1[] PROGMEM =
diff --git a/sonoff/xdrv_11_knx.ino b/sonoff/xdrv_11_knx.ino
index 3cea435bd..77a9f8aa9 100644
--- a/sonoff/xdrv_11_knx.ino
+++ b/sonoff/xdrv_11_knx.ino
@@ -768,9 +768,9 @@ const char HTTP_FORM_KNX_OPT[] PROGMEM =
   "<option value='%d'>%s</option>";
 
 const char HTTP_FORM_KNX_GA[] PROGMEM =
-  "<input style='width:12%%;' type='number' id='%s' name='%s' min='0' max='31' value='0'> / "
-  "<input style='width:12%%;' type='number' id='%s' name='%s' min='0' max='7' value='0'> / "
-  "<input style='width:12%%;' type='number' id='%s' name='%s' min='0' max='255' value='0'> ";
+  "<input style='width:12%%;' type='number' id='%s' min='0' max='31' value='0'> / "
+  "<input style='width:12%%;' type='number' id='%s' min='0' max='7' value='0'> / "
+  "<input style='width:12%%;' type='number' id='%s' min='0' max='255' value='0'> ";
 
 const char HTTP_FORM_KNX_ADD_BTN[] PROGMEM =
   "<button type='submit' onclick='%s()' %s name='btn_add' value='%d' style='width:18%%;'>" D_ADD "</button><br><br>"
@@ -895,7 +895,7 @@ void HandleKNXConfiguration(void)
       }
     }
     WSContentSend_P(PSTR("</select> -> "));
-    WSContentSend_P(HTTP_FORM_KNX_GA, "GA_FNUM", "GA_FNUM", "GA_AREA", "GA_AREA", "GA_FDEF", "GA_FDEF");
+    WSContentSend_P(HTTP_FORM_KNX_GA, "GA_FNUM", "GA_AREA", "GA_FDEF");
     WSContentSend_P(HTTP_FORM_KNX_ADD_BTN, "GAwarning", (Settings.knx_GA_registered < MAX_KNX_GA) ? "" : "disabled", 1);
     for (uint8_t i = 0; i < Settings.knx_GA_registered ; ++i)
     {
@@ -907,7 +907,7 @@ void HandleKNXConfiguration(void)
     }
 
     WSContentSend_P(HTTP_FORM_KNX3);
-    WSContentSend_P(HTTP_FORM_KNX_GA, "CB_FNUM", "CB_FNUM", "CB_AREA", "CB_AREA", "CB_FDEF", "CB_FDEF");
+    WSContentSend_P(HTTP_FORM_KNX_GA, "CB_FNUM", "CB_AREA", "CB_FDEF");
     WSContentSend_P(HTTP_FORM_KNX4);
 
     uint8_t j;
diff --git a/sonoff/xdrv_20_hue.ino b/sonoff/xdrv_20_hue.ino
index 6a4617ffc..7d7934106 100644
--- a/sonoff/xdrv_20_hue.ino
+++ b/sonoff/xdrv_20_hue.ino
@@ -344,7 +344,7 @@ void HueLightStatus2(uint8_t device, String *response)
 
 // generate a unique lightId mixing local IP address and device number
 // it is limited to 16 devices.
-// last 16 bits of Mac address + 4 bits of local light
+// last 24 bits of Mac address + 4 bits of local light
 uint32_t EncodeLightId(uint8_t idx)
 {
   uint8_t mac[6];
@@ -422,7 +422,7 @@ void HueLights(String *path)
   else if (path->endsWith("/state")) {               // Got ID/state
     path->remove(0,8);                               // Remove /lights/
     path->remove(path->indexOf("/state"));           // Remove /state
-    device = atoi(path->c_str());
+    device = DecodeLightId(atoi(path->c_str()));
     if ((device < 1) || (device > maxhue)) {
       device = 1;
     }
@@ -434,7 +434,7 @@ void HueLights(String *path)
       if (hue_json.containsKey("on")) {
 
         response += FPSTR(HUE_LIGHT_RESPONSE_JSON);
-        response.replace("{id", String(device));
+        response.replace("{id", String(EncodeLightId(device)));
         response.replace("{cm", "on");
 
         on = hue_json["on"];
diff --git a/sonoff/xnrg_05_pzem_ac.ino b/sonoff/xnrg_05_pzem_ac.ino
index 653b4ef63..afabca17c 100644
--- a/sonoff/xnrg_05_pzem_ac.ino
+++ b/sonoff/xnrg_05_pzem_ac.ino
@@ -36,6 +36,24 @@
 #include <TasmotaModbus.h>
 TasmotaModbus *PzemAcModbus;
 
+/*
+uint16_t PzemCalculateCRC(uint8_t *buffer, uint8_t num)
+{
+  uint16_t crc = 0xFFFF;
+  for (uint8_t i = 0; i < num; i++) {
+    crc ^= buffer[i];
+    for (uint8_t j = 8; j; j--) {
+      if ((crc & 0x0001) != 0) {        // If the LSB is set
+        crc >>= 1;                      // Shift right and XOR 0xA001
+        crc ^= 0xA001;
+      } else {                          // Else LSB is not set
+        crc >>= 1;                      // Just shift right
+      }
+    }
+  }
+  return crc;
+}
+*/
 void PzemAcEverySecond(void)
 {
   static uint8_t send_retry = 0;
@@ -51,24 +69,26 @@ void PzemAcEverySecond(void)
     if (error) {
       AddLog_P2(LOG_LEVEL_DEBUG, PSTR(D_LOG_DEBUG "PzemAc response error %d"), error);
     } else {
-      energy_data_valid = 0;
+//      if ((PzemCalculateCRC(buffer, 23)) == ((buffer[24] << 8) | buffer[23])) {
+        energy_data_valid = 0;
 
-      //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
-      // 01 04 14 08 D1 00 6C 00 00 00 F4 00 00 00 26 00 00 01 F4 00 64 00 00 51 34
-      // Id Cc Sz Volt- Current---- Power------ Energy----- Frequ PFact Alarm Crc--
-      energy_voltage = (float)((buffer[3] << 8) + buffer[4]) / 10.0;                                                  // 6553.0 V
-      energy_current = (float)((buffer[7] << 24) + (buffer[8] << 16) + (buffer[5] << 8) + buffer[6]) / 1000.0;        // 4294967.000 A
-      energy_active_power = (float)((buffer[11] << 24) + (buffer[12] << 16) + (buffer[9] << 8) + buffer[10]) / 10.0;  // 429496729.0 W
-      energy_frequency = (float)((buffer[17] << 8) + buffer[18]) / 10.0;                                              // 50.0 Hz
-      energy_power_factor = (float)((buffer[19] << 8) + buffer[20]) / 100.0;                                          // 1.00
-      float energy = (float)((buffer[15] << 24) + (buffer[16] << 16) + (buffer[13] << 8) + buffer[14]);               // 4294967295 Wh
+        //  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
+        // 01 04 14 08 D1 00 6C 00 00 00 F4 00 00 00 26 00 00 01 F4 00 64 00 00 51 34
+        // Id Cc Sz Volt- Current---- Power------ Energy----- Frequ PFact Alarm Crc--
+        energy_voltage = (float)((buffer[3] << 8) + buffer[4]) / 10.0;                                                  // 6553.0 V
+        energy_current = (float)((buffer[7] << 24) + (buffer[8] << 16) + (buffer[5] << 8) + buffer[6]) / 1000.0;        // 4294967.000 A
+        energy_active_power = (float)((buffer[11] << 24) + (buffer[12] << 16) + (buffer[9] << 8) + buffer[10]) / 10.0;  // 429496729.0 W
+        energy_frequency = (float)((buffer[17] << 8) + buffer[18]) / 10.0;                                              // 50.0 Hz
+        energy_power_factor = (float)((buffer[19] << 8) + buffer[20]) / 100.0;                                          // 1.00
+        float energy = (float)((buffer[15] << 24) + (buffer[16] << 16) + (buffer[13] << 8) + buffer[14]);               // 4294967295 Wh
 
-      if (!energy_start || (energy < energy_start)) { energy_start = energy; }  // Init after restart and handle roll-over if any
-      if (energy != energy_start) {
-        energy_kWhtoday += (unsigned long)((energy - energy_start) * 100);
-        energy_start = energy;
-      }
-      EnergyUpdateToday();
+        if (!energy_start || (energy < energy_start)) { energy_start = energy; }  // Init after restart and handle roll-over if any
+        if (energy != energy_start) {
+          energy_kWhtoday += (unsigned long)((energy - energy_start) * 100);
+          energy_start = energy;
+        }
+        EnergyUpdateToday();
+//      }
     }
   }
 
@@ -118,7 +138,7 @@ int Xnrg05(uint8_t function)
         PzemAcSnsInit();
         break;
       case FUNC_ENERGY_EVERY_SECOND:
-        PzemAcEverySecond();
+        if (uptime > 4) { PzemAcEverySecond(); }  // Fix start up issue #5875
         break;
     }
   }
diff --git a/sonoff/xnrg_06_pzem_dc.ino b/sonoff/xnrg_06_pzem_dc.ino
index f9817577a..ab70b4e62 100644
--- a/sonoff/xnrg_06_pzem_dc.ino
+++ b/sonoff/xnrg_06_pzem_dc.ino
@@ -117,7 +117,7 @@ int Xnrg06(uint8_t function)
         PzemDcSnsInit();
         break;
       case FUNC_ENERGY_EVERY_SECOND:
-        PzemDcEverySecond();
+        if (uptime > 4) { PzemDcEverySecond(); }  // Fix start up issue #5875
         break;
     }
   }