diff --git a/data b/data
index fd76caa..52e90db 160000
--- a/data
+++ b/data
@@ -1 +1 @@
-Subproject commit fd76caa6f4168ca345b6f847f85e5fc9bb6543b2
+Subproject commit 52e90dbdee7f53dcca5a9857dd411f98a569263a
diff --git a/src/lib/block_notify.cpp b/src/lib/block_notify.cpp
index 29a7dcf..2ef4268 100644
--- a/src/lib/block_notify.cpp
+++ b/src/lib/block_notify.cpp
@@ -2,7 +2,7 @@
 
 char *wsServer;
 esp_websocket_client_handle_t blockNotifyClient = NULL;
-uint currentBlockHeight = 816000;
+uint currentBlockHeight = 840000;
 uint blockMedianFee = 1;
 bool blockNotifyInit = false;
 unsigned long int lastBlockUpdate;
@@ -59,7 +59,7 @@ void setupBlockNotify()
   String mempoolInstance =
       preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE);
 
-  while (dnsErr != 1)
+  while (dnsErr != 1 &&  !strchr(mempoolInstance.c_str(), ':'))
   {
     dnsErr = WiFi.hostByName(mempoolInstance.c_str(), result);
 
@@ -73,8 +73,10 @@ void setupBlockNotify()
   }
 
   // Get current block height through regular API
+  int blockFetch = getBlockFetch();
 
-  currentBlockHeight = getBlockFetch();
+  if (blockFetch > currentBlockHeight)
+    currentBlockHeight = blockFetch;
 
   if (currentBlockHeight != -1)
   {
@@ -95,13 +97,19 @@ void setupBlockNotify()
   // std::strcpy(wsServer, String("wss://" + mempoolInstance +
   // "/api/v1/ws").c_str());
 
+  const String protocol = preferences.getBool("mempoolSecure", true) ? "wss" : "ws";
+
+  String mempoolUri = protocol + "://" + preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE) + "/api/v1/ws";
+  
   esp_websocket_client_config_t config = {
-      .uri = "wss://mempool.space/api/v1/ws",
+     // .uri = "wss://mempool.space/api/v1/ws",
       //  .task_stack = (6*1024),
       // .cert_pem = mempoolWsCert,
       .user_agent = USER_AGENT,
   };
 
+  config.uri = mempoolUri.c_str();
+
   blockNotifyClient = esp_websocket_client_init(&config);
   esp_websocket_register_events(blockNotifyClient, WEBSOCKET_EVENT_ANY,
                                 onWebsocketBlockEvent, blockNotifyClient);
@@ -282,21 +290,40 @@ void restartBlockNotify()
 
 int getBlockFetch()
 {
-  String mempoolInstance =
-      preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE);
+  try {
+    WiFiClientSecure client;
+    client.setInsecure();
 
-  // Get current block height through regular API
-  HTTPClient *http = new HTTPClient();
-  http->begin("https://" + mempoolInstance + "/api/blocks/tip/height");
-  int httpCode = http->GET();
+    String mempoolInstance =
+        preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE);
 
-  if (httpCode > 0 && httpCode == HTTP_CODE_OK)
-  {
-    String blockHeightStr = http->getString();
-    return blockHeightStr.toInt();
+    // Get current block height through regular API
+    HTTPClient http;
+
+    const String protocol = preferences.getBool("mempoolSecure", true) ? "https" : "http";
+
+    if (preferences.getBool("mempoolSecure", true))
+      http.begin(client, protocol + "://" + mempoolInstance + "/api/blocks/tip/height");
+    else
+      http.begin(protocol + "://" + mempoolInstance + "/api/blocks/tip/height");
+
+    Serial.println("Fetching block height from " + protocol + "://" + mempoolInstance + "/api/blocks/tip/height");
+    int httpCode = http.GET();
+
+    if (httpCode > 0 && httpCode == HTTP_CODE_OK)
+    {
+      String blockHeightStr = http.getString();
+      return blockHeightStr.toInt();
+    } else {
+      Serial.println("HTTP code" + String(httpCode));
+      return 0;
+    }
+  }
+  catch (...) {
+    Serial.println(F("An exception occured while trying to get the latest block"));
   }
 
-  return -1;
+  return 2203; // B-T-C
 }
 
 uint getLastBlockUpdate()
diff --git a/src/lib/config.cpp b/src/lib/config.cpp
index 032dc19..2a8bc7d 100644
--- a/src/lib/config.cpp
+++ b/src/lib/config.cpp
@@ -46,6 +46,10 @@ void setup()
       {
         delay(1000);
       }
+    } else if (mcp1.digitalRead(1) == LOW) {
+      preferences.clear();
+      queueLedEffect(LED_EFFECT_WIFI_ERASE_SETTINGS);
+      ESP.restart();
     }
   }
 
@@ -60,7 +64,7 @@ void setup()
   setupTasks();
   setupTimers();
 
-  xTaskCreate(setupWebsocketClients, "setupWebsocketClients", 4096, NULL,
+  xTaskCreate(setupWebsocketClients, "setupWebsocketClients", 8192, NULL,
               tskIDLE_PRIORITY, NULL);
 
   setupButtonTask();
diff --git a/src/lib/config.hpp b/src/lib/config.hpp
index b6fae71..51c0086 100644
--- a/src/lib/config.hpp
+++ b/src/lib/config.hpp
@@ -27,8 +27,10 @@
 #define NTP_SERVER "pool.ntp.org"
 #define DEFAULT_MEMPOOL_INSTANCE "mempool.space"
 #define TIME_OFFSET_SECONDS 3600
-#define USER_AGENT "BTClock/2.0"
+#define USER_AGENT "BTClock/3.0"
+#ifndef MCP_DEV_ADDR
 #define MCP_DEV_ADDR 0x20
+#endif
 #define DEFAULT_SECONDS_BETWEEN_PRICE_UPDATE 30
 #define DEFAULT_MINUTES_FULL_REFRESH 60
 
diff --git a/src/lib/webserver.cpp b/src/lib/webserver.cpp
index 06fb77c..cd4e3fa 100644
--- a/src/lib/webserver.cpp
+++ b/src/lib/webserver.cpp
@@ -460,7 +460,7 @@ void onApiSettingsPatch(AsyncWebServerRequest *request, JsonVariant &json)
   String boolSettings[] = {"fetchEurPrice", "ledTestOnPower", "ledFlashOnUpd",
                            "mdnsEnabled", "otaEnabled", "stealFocus",
                            "mcapBigChar", "useSatsSymbol", "useBlkCountdown",
-                           "suffixPrice", "disableLeds", "ownDataSource", "flAlwaysOn", "flFlashOnUpd"};
+                           "suffixPrice", "disableLeds", "ownDataSource", "flAlwaysOn", "flFlashOnUpd", "mempoolSecure"};
 
   for (String setting : boolSettings)
   {
@@ -557,9 +557,10 @@ void onApiSettingsGet(AsyncWebServerRequest *request)
       preferences.getUInt("fullRefreshMin", DEFAULT_MINUTES_FULL_REFRESH);
   root["wpTimeout"] = preferences.getUInt("wpTimeout", 600);
   root["tzOffset"] = preferences.getInt("gmtOffset", TIME_OFFSET_SECONDS) / 60;
-  root["useBitcoinNode"] = preferences.getBool("useNode", false);
+//  root["useBitcoinNode"] = preferences.getBool("useNode", false);
   root["mempoolInstance"] =
       preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE);
+  root["mempoolSecure"] = preferences.getBool("mempoolSecure", true);
   root["ledTestOnPower"] = preferences.getBool("ledTestOnPower", true);
   root["ledFlashOnUpd"] = preferences.getBool("ledFlashOnUpd", false);
   root["ledBrightness"] = preferences.getUInt("ledBrightness", 128);