diff --git a/src/PPPOS.c b/src/PPPOS.c
index ed21a75..fb3d504 100644
--- a/src/PPPOS.c
+++ b/src/PPPOS.c
@@ -21,7 +21,6 @@
 #include "netif/ppp/pppapi.h"
 #include "PPPOS.h"
 
-
  #ifdef __cplusplus
 extern "C" {
 #endif
@@ -45,6 +44,10 @@ ppp_pcb *ppp;
 /* The PPP IP interface */
 struct netif ppp_netif;
 
+/* DNS Info */
+esp_netif_dns_info_t dns;
+ip_addr_t dns_server; 
+
 /* PPP status callback example */
 static void ppp_status_cb(ppp_pcb *pcb, int err_code, void *ctx)
 {
@@ -53,7 +56,12 @@ static void ppp_status_cb(ppp_pcb *pcb, int err_code, void *ctx)
 
     switch (err_code) {
     case PPPERR_NONE: {
+
+        esp_netif_dns_info_t dns_info = {0};
+        IP_ADDR4(&dns_info.ip, 8, 8, 8, 8);
         ESP_LOGE(TAG, "status_cb: Connected\n");
+        
+        esp_netif_set_dns_info(pppif, ESP_NETIF_DNS_MAIN, &dns_info);
     #if PPP_IPV4_SUPPORT
             ESP_LOGE(TAG, "   ipaddr_v4  = %s\n", ipaddr_ntoa(&pppif->ip_addr));
             ESP_LOGE(TAG, "   gateway  = %s\n", ipaddr_ntoa(&pppif->gw));
@@ -152,7 +160,6 @@ static u32_t ppp_output_callback(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx)
 }
 
 
-
 static void pppos_client_task(void *pvParameters)
 {
  
@@ -208,7 +215,7 @@ void PPPOS_start(){
   }
         pppapi_set_default(ppp);
         pppapi_set_auth(ppp, PPPAUTHTYPE_PAP, PPP_User, PPP_Pass);
-        ppp_set_usepeerdns(ppp, 1);
+        ppp_set_usepeerdns(ppp, 0);
         pppapi_connect(ppp, 0);
         
         PPPOS_started = true;
@@ -221,6 +228,7 @@ bool PPPOS_status(){
 
 void PPPOS_stop(){
   pppapi_close(ppp, 0); 
+  PPPOS_connected = false; 
 }
 
 char* PPPOS_read(){
@@ -235,6 +243,8 @@ char* PPPOS_read(){
 
 void PPPOS_write(char* cmd){
   uart_flush(PPPOS_uart_num);
+  // uart_flush_input(PPPOS_uart_num);
+
   if (cmd != NULL) {
      int cmdSize = strlen(cmd);
      uart_write_bytes(PPPOS_uart_num, (const char*)cmd, cmdSize);
diff --git a/src/PPPOS.h b/src/PPPOS.h
index 8112c09..b8daf60 100644
--- a/src/PPPOS.h
+++ b/src/PPPOS.h
@@ -5,7 +5,7 @@ extern "C" {
 #endif
 
 
-#define BUF_SIZE (1024)
+#define BUF_SIZE (4096)
 
 
 void PPPOS_init(int txPin, int rxPin, int baudrate, int uart_number, char* user, char* pass);
diff --git a/src/PPPOSClient.cpp b/src/PPPOSClient.cpp
index 007ef4e..ba26cc3 100644
--- a/src/PPPOSClient.cpp
+++ b/src/PPPOSClient.cpp
@@ -156,7 +156,7 @@ size_t PPPOSClient::write(const uint8_t *buf, size_t size)
                 }
             }
             else if(res < 0) {
-                log_e("fail on fd %d, errno: %d, \"%s\"", fd(), errno, strerror(errno));
+                log_e("fail on fd %d, errno: %d, \"%s\"", errno, strerror(errno)); // fd()
                 if(errno != EAGAIN) {
                     stop();
                     res = 0;
diff --git a/src/PPPOSClient.h b/src/PPPOSClient.h
index a3cd128..4262f2e 100644
--- a/src/PPPOSClient.h
+++ b/src/PPPOSClient.h
@@ -38,7 +38,7 @@ class PPPOSClient : public Client
       virtual void flush();
       virtual void stop();
       virtual uint8_t connected();
-    
+      
       using Print::write;
     
   protected: