diff --git a/app/Classes/Protocol/EMSI.php b/app/Classes/Protocol/EMSI.php
index b213d6d..336c16e 100644
--- a/app/Classes/Protocol/EMSI.php
+++ b/app/Classes/Protocol/EMSI.php
@@ -953,14 +953,16 @@ final class EMSI extends BaseProtocol implements CRCInterface,ZmodemInterface
 								Log::debug(sprintf('%s:  - IAC WILL BINARY [%02x]',self::LOGKEY,ord($iac)));
 
 								// Config with DO
-								$this->client->send(chr(0xff).chr(0xfd).$iac,10);
+								//$this->client->send(chr(0xff).chr(0xfd).$iac,10);
 
 							} elseif ($iaccmd === 0xfd) {
 								Log::debug(sprintf('%s:  - IAC DO BINARY [%02x]',self::LOGKEY,ord($iac)));
 
 								// Config with WILL
-								$this->client->send(chr(0xff).chr(0xfb).$iac,10);
-								$this->client->iac_bin = true;
+								if ($this->client->iac_bin) {
+									$this->client->send(chr(0xff).chr(0xfb).$iac,10);
+									$this->client->iac_bin = true;
+								}
 							}
 
 							$iaccmd = NULL;
@@ -972,28 +974,31 @@ final class EMSI extends BaseProtocol implements CRCInterface,ZmodemInterface
 								Log::debug(sprintf('%s:  - IAC WILL SUPPRESS-GO-AHEAD [%02x]',self::LOGKEY,ord($iac)));
 
 								// Config with DO
-								$this->client->send(chr(0xff).chr(0xfd).$iac,10);
+								//$this->client->send(chr(0xff).chr(0xfd).$iac,10);
+
 							} elseif ($iaccmd === 0xfd) {
 								Log::debug(sprintf('%s:  - IAC DO SUPPRESS-GO-AHEAD [%02x]',self::LOGKEY,ord($iac)));
 
 								// Config with WILL
 								$this->client->send(chr(0xff).chr(0xfb).$iac,10);
-								$this->client->iac_bin = true;
 							}
 
 							$iaccmd = NULL;
 							break;
 
+						// Will
 						case 0xfb:
 							Log::debug(sprintf('%s:  - IAC WILL [%02x]',self::LOGKEY,ord($iac)));
 							$iaccmd = ord($iac);
 							break;
 
+						// Do
 						case 0xfd:
 							Log::debug(sprintf('%s:  - IAC DO [%02x]',self::LOGKEY,ord($iac)));
 							$iaccmd = ord($iac);
 							break;
 
+						// IAC
 						case 0xff:
 							Log::debug(sprintf('%s:  - IAC [%02x]',self::LOGKEY,ord($iac)));
 							$iaccmd = ord($iac);