diff --git a/CompressIPUI/Program.cs b/CompressIPUI/Program.cs
index ff73722..a4e7c4f 100644
--- a/CompressIPUI/Program.cs
+++ b/CompressIPUI/Program.cs
@@ -54,6 +54,7 @@ static async Task Main(string[] args)
                     };
                     await client.SubscribeAsync(cts.Token);
                     await client.RunAsync(cts.Token);
+                    cts.Cancel();
                 }
             }
             catch (OperationCanceledException)
diff --git a/RfpProxy.AaMiDe/AaMiDe/AaMiDeMessage.cs b/RfpProxy.AaMiDe/AaMiDe/AaMiDeMessage.cs
index 70b3006..151f55e 100644
--- a/RfpProxy.AaMiDe/AaMiDe/AaMiDeMessage.cs
+++ b/RfpProxy.AaMiDe/AaMiDe/AaMiDeMessage.cs
@@ -13,6 +13,8 @@ public abstract class AaMiDeMessage
     {
         private readonly ushort _length;
 
+        public int MessageLength => _length + 4;
+
         public virtual ushort Length => 4;
 
         public virtual bool HasUnknown => !Raw.IsEmpty;
diff --git a/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeElement.cs b/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeElement.cs
index ef264b1..ea66a71 100644
--- a/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeElement.cs
+++ b/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeElement.cs
@@ -60,6 +60,8 @@ public static DeTeWeElement Create(DeTeWeType type, ReadOnlyMemory<byte> data)
                         return new SendTextDeTeWeElement(data);
                     case DeTeWeType.Reserved1:
                         return new Reserved1DeTeWeElement(data);
+                    case DeTeWeType.Unknown1C:
+                        return new Unknown1CDeTeWeElement(data);
                     default:
                         return new UnknownDeTeWeElement(type, data);
                 }
diff --git a/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeType.cs b/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeType.cs
index 268115d..37a8851 100644
--- a/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeType.cs
+++ b/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/DeTeWeType.cs
@@ -3,6 +3,7 @@
     public enum DeTeWeType:byte
     {
         Language = 0x16,
+        Unknown1C = 0x1C,
         Display = 0x20,
         SendText = 0x21,
         DateTime = 0x23,
diff --git a/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/Unknown1CDeTeWeElement.cs b/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/Unknown1CDeTeWeElement.cs
new file mode 100644
index 0000000..3014c67
--- /dev/null
+++ b/RfpProxy.AaMiDe/AaMiDe/Nwk/InformationElements/Proprietary/DeTeWe/Unknown1CDeTeWeElement.cs
@@ -0,0 +1,26 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace RfpProxy.AaMiDe.Nwk.InformationElements.Proprietary.DeTeWe
+{
+    public class Unknown1CDeTeWeElement : DeTeWeElement
+    {
+        public string Content { get; set; }
+
+        public override bool HasUnknown => false;
+
+        public override ReadOnlyMemory<byte> Raw => Memory<byte>.Empty;
+
+        public Unknown1CDeTeWeElement(ReadOnlyMemory<byte> data) : base(DeTeWeType.Unknown1C, data)
+        {
+            Content = Encoding.UTF8.GetString(data.Span);
+        }
+
+        public override void Log(TextWriter writer)
+        {
+            base.Log(writer);
+            writer.Write($"({Content})");
+        }
+    }
+}
\ No newline at end of file
diff --git a/RfpProxy.AaMiDe/AaMiDe/Sys/SysInitMessage.cs b/RfpProxy.AaMiDe/AaMiDe/Sys/SysInitMessage.cs
index b1e1248..be8149d 100644
--- a/RfpProxy.AaMiDe/AaMiDe/Sys/SysInitMessage.cs
+++ b/RfpProxy.AaMiDe/AaMiDe/Sys/SysInitMessage.cs
@@ -214,7 +214,7 @@ public enum RfpCapabilities : uint
 
         public override bool HasUnknown => true;
 
-        protected override ReadOnlyMemory<byte> Raw => base.Raw.Slice(Protocol > 0x040000?0x110:0xF4);
+        protected override ReadOnlyMemory<byte> Raw => base.Raw.Slice(Protocol > 0x080000?0x110:0xF4);
 
         public override ushort Length => (ushort) (base.Length + 0x110u);
 
diff --git a/RfpProxy.Test/CryptoTest.cs b/RfpProxy.Test/CryptoTest.cs
index 9ba4c79..8b1317e 100644
--- a/RfpProxy.Test/CryptoTest.cs
+++ b/RfpProxy.Test/CryptoTest.cs
@@ -14,7 +14,7 @@ public class CryptoTest
     {
         private readonly ITestOutputHelper _output;
 
-        private CryptedRfpConnection _connection;
+        private readonly CryptedRfpConnection _connection;
 
         public CryptoTest(ITestOutputHelper output)
         {
@@ -72,14 +72,39 @@ public void CanCalculateInitSignature()
             }
         }
 
+        [Fact]
+        public void CanCalculateInitSignature2()
+        {
+            var sysInit = "01200110 0000000d 00080100 0030421b 17370000 00000000 0001ef3c 2a0d8ce8" +
+                          "725371d0 d799a029 8dc02c73 4ac5b803 abc38663 b494de7b 2ffbe03d 70b616eb" +
+                          "facf2e7d 85f61b29 5cba5c76 ea515501 b3c02b75 5862261b fc08ffde 00080201" +
+                          "00000000 00000000 00000000 00000000 00000000 5349502d 44454354 20382e31" +
+                          "5350332d 464b3234 00000000 00000000 00000000 00000000 00000000 00000000" +
+                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                          "00000000";
+            sysInit = sysInit.Replace(" ", String.Empty);
+            var signature_key = "e7adda3adb0521f3d3fbdf3a18ee8648b47398b1570c2b45ef8d2a9180a1a32c69284a9c97d444abf87f5c578f9428214dd0183cba969dc5";
+            var sysAuthenticate = "a1ec05aa36940a9c027cc8abe70455011c33e8aac57860f6ac9c2d00432182b8";
+            using (var md5 = MD5.Create())
+            {
+                var data = HexEncoding.HexToByte(sysAuthenticate + sysInit + signature_key);
+                var hash = md5.ComputeHash(data);
+                _output.WriteLine(data.AsSpan().ToHex());
+                _output.WriteLine(sysInit);
+                _output.WriteLine(hash.AsSpan().ToHex());
+                Assert.Equal("cb8321c7401dd174d3b350fafaa7b770", hash.AsSpan().ToHex());
+            }
+        }
+
         [Fact]
         public void CanDecryptSysInit()
         {
             using (var aes = Aes.Create())
             {
                 var key = "e705bc1a92412f3262c547f87946936997e690ada46fad25bbc626f6f5a5a6ce";
-                var ciphered = "705bb6102d8f709f94ad5ba7382bdf0ce136e535c109c1e9b2ffed6c5ced5fe4" +
-                               "0cc2c769d9e6b9597447531e2731f107f15931a66359b1b465d3ae192bbbb614";
+                var ciphered = "2a0d8ce8725371d0d799a0298dc02c734529d51993eaae643c932fe6c571ddde4529d51993eaae643c932fe6c571dddea43c1f587f49cc35509c1c58b7fef978";
                 ciphered = ciphered.Replace(" ", String.Empty);
                 aes.KeySize = 256;
                 aes.Padding = PaddingMode.None;
@@ -94,11 +119,93 @@ public void CanDecryptSysInit()
                 {
                     s.Write(data);
                     _output.WriteLine(plain.AsSpan().ToHex());
-                    _output.WriteLine(crc32(ms.ToArray()).ToString("x8"));
+                    _output.WriteLine(crc32(ms.ToArray()).ToString("x8")); 
+                    _output.WriteLine(crc32(ms.ToArray().AsSpan(0,60).ToArray()).ToString("x8")); 
+                    _output.WriteLine(bettercrc(ms.ToArray().AsSpan(0,60)).ToString("x8")); 
                     
                 }
             }
 
+            uint bettercrc(ReadOnlySpan<byte> data)
+            {
+                var result = 0u;
+                uint[] crc_table = {
+                    0x00000000, 0xB71DC104, 0x6E3B8209, 0xD926430D,
+                    0xDC760413, 0x6B6BC517, 0xB24D861A, 0x0550471E,
+                    0xB8ED0826, 0x0FF0C922, 0xD6D68A2F, 0x61CB4B2B,
+                    0x649B0C35, 0xD386CD31, 0x0AA08E3C, 0xBDBD4F38,
+                    0x70DB114C, 0xC7C6D048, 0x1EE09345, 0xA9FD5241,
+                    0xACAD155F, 0x1BB0D45B, 0xC2969756, 0x758B5652,
+                    0xC836196A, 0x7F2BD86E, 0xA60D9B63, 0x11105A67,
+                    0x14401D79, 0xA35DDC7D, 0x7A7B9F70, 0xCD665E74,
+                    0xE0B62398, 0x57ABE29C, 0x8E8DA191, 0x39906095,
+                    0x3CC0278B, 0x8BDDE68F, 0x52FBA582, 0xE5E66486,
+                    0x585B2BBE, 0xEF46EABA, 0x3660A9B7, 0x817D68B3,
+                    0x842D2FAD, 0x3330EEA9, 0xEA16ADA4, 0x5D0B6CA0,
+                    0x906D32D4, 0x2770F3D0, 0xFE56B0DD, 0x494B71D9,
+                    0x4C1B36C7, 0xFB06F7C3, 0x2220B4CE, 0x953D75CA,
+                    0x28803AF2, 0x9F9DFBF6, 0x46BBB8FB, 0xF1A679FF,
+                    0xF4F63EE1, 0x43EBFFE5, 0x9ACDBCE8, 0x2DD07DEC,
+                    0x77708634, 0xC06D4730, 0x194B043D, 0xAE56C539,
+                    0xAB068227, 0x1C1B4323, 0xC53D002E, 0x7220C12A,
+                    0xCF9D8E12, 0x78804F16, 0xA1A60C1B, 0x16BBCD1F,
+                    0x13EB8A01, 0xA4F64B05, 0x7DD00808, 0xCACDC90C,
+                    0x07AB9778, 0xB0B6567C, 0x69901571, 0xDE8DD475,
+                    0xDBDD936B, 0x6CC0526F, 0xB5E61162, 0x02FBD066,
+                    0xBF469F5E, 0x085B5E5A, 0xD17D1D57, 0x6660DC53,
+                    0x63309B4D, 0xD42D5A49, 0x0D0B1944, 0xBA16D840,
+                    0x97C6A5AC, 0x20DB64A8, 0xF9FD27A5, 0x4EE0E6A1,
+                    0x4BB0A1BF, 0xFCAD60BB, 0x258B23B6, 0x9296E2B2,
+                    0x2F2BAD8A, 0x98366C8E, 0x41102F83, 0xF60DEE87,
+                    0xF35DA999, 0x4440689D, 0x9D662B90, 0x2A7BEA94,
+                    0xE71DB4E0, 0x500075E4, 0x892636E9, 0x3E3BF7ED,
+                    0x3B6BB0F3, 0x8C7671F7, 0x555032FA, 0xE24DF3FE,
+                    0x5FF0BCC6, 0xE8ED7DC2, 0x31CB3ECF, 0x86D6FFCB,
+                    0x8386B8D5, 0x349B79D1, 0xEDBD3ADC, 0x5AA0FBD8,
+                    0xEEE00C69, 0x59FDCD6D, 0x80DB8E60, 0x37C64F64,
+                    0x3296087A, 0x858BC97E, 0x5CAD8A73, 0xEBB04B77,
+                    0x560D044F, 0xE110C54B, 0x38368646, 0x8F2B4742,
+                    0x8A7B005C, 0x3D66C158, 0xE4408255, 0x535D4351,
+                    0x9E3B1D25, 0x2926DC21, 0xF0009F2C, 0x471D5E28,
+                    0x424D1936, 0xF550D832, 0x2C769B3F, 0x9B6B5A3B,
+                    0x26D61503, 0x91CBD407, 0x48ED970A, 0xFFF0560E,
+                    0xFAA01110, 0x4DBDD014, 0x949B9319, 0x2386521D,
+                    0x0E562FF1, 0xB94BEEF5, 0x606DADF8, 0xD7706CFC,
+                    0xD2202BE2, 0x653DEAE6, 0xBC1BA9EB, 0x0B0668EF,
+                    0xB6BB27D7, 0x01A6E6D3, 0xD880A5DE, 0x6F9D64DA,
+                    0x6ACD23C4, 0xDDD0E2C0, 0x04F6A1CD, 0xB3EB60C9,
+                    0x7E8D3EBD, 0xC990FFB9, 0x10B6BCB4, 0xA7AB7DB0,
+                    0xA2FB3AAE, 0x15E6FBAA, 0xCCC0B8A7, 0x7BDD79A3,
+                    0xC660369B, 0x717DF79F, 0xA85BB492, 0x1F467596,
+                    0x1A163288, 0xAD0BF38C, 0x742DB081, 0xC3307185,
+                    0x99908A5D, 0x2E8D4B59, 0xF7AB0854, 0x40B6C950,
+                    0x45E68E4E, 0xF2FB4F4A, 0x2BDD0C47, 0x9CC0CD43,
+                    0x217D827B, 0x9660437F, 0x4F460072, 0xF85BC176,
+                    0xFD0B8668, 0x4A16476C, 0x93300461, 0x242DC565,
+                    0xE94B9B11, 0x5E565A15, 0x87701918, 0x306DD81C,
+                    0x353D9F02, 0x82205E06, 0x5B061D0B, 0xEC1BDC0F,
+                    0x51A69337, 0xE6BB5233, 0x3F9D113E, 0x8880D03A,
+                    0x8DD09724, 0x3ACD5620, 0xE3EB152D, 0x54F6D429,
+                    0x7926A9C5, 0xCE3B68C1, 0x171D2BCC, 0xA000EAC8,
+                    0xA550ADD6, 0x124D6CD2, 0xCB6B2FDF, 0x7C76EEDB,
+                    0xC1CBA1E3, 0x76D660E7, 0xAFF023EA, 0x18EDE2EE,
+                    0x1DBDA5F0, 0xAAA064F4, 0x738627F9, 0xC49BE6FD,
+                    0x09FDB889, 0xBEE0798D, 0x67C63A80, 0xD0DBFB84,
+                    0xD58BBC9A, 0x62967D9E, 0xBBB03E93, 0x0CADFF97,
+                    0xB110B0AF, 0x060D71AB, 0xDF2B32A6, 0x6836F3A2,
+                    0x6D66B4BC, 0xDA7B75B8, 0x035D36B5, 0xB440F7B1
+                };
+                for (int i = 0; i < data.Length; i++)
+                {
+                    var b = data[i];
+                    result = crc_table[b ^ (result & 0xff)] ^ (result >> 8);
+                }
+
+                result = crc_table[data.Length ^ (result & 0xff)] ^ (result >> 8);
+
+                return BinaryPrimitives.ReverseEndianness(~result);
+            }
+
             uint crc32(byte[] data)
             {
                 var result = 0u;
diff --git a/RfpProxy.Test/MessageTest.cs b/RfpProxy.Test/MessageTest.cs
index 58cfc32..17c299c 100644
--- a/RfpProxy.Test/MessageTest.cs
+++ b/RfpProxy.Test/MessageTest.cs
@@ -1,6 +1,8 @@
 using System;
 using System.IO;
 using System.Linq;
+using System.Net.NetworkInformation;
+using System.Security.Cryptography;
 using RfpProxy.AaMiDe;
 using RfpProxy.AaMiDe.Dnm;
 using RfpProxy.AaMiDe.Mac;
@@ -105,17 +107,63 @@ public void CanDecodeSysSnmpMessage()
         public void CanDecodeSysAuthenticateMessage()
         {
             var auth = Decode<SysAuthenticateMessage>("012d0020" +
-                                             "57b858bb227549d7" +
-                                             "2215096317457eee" +
-                                             "f01aa118ab156ad5" +
-                                             "e8b35e55ab2b30a0");
-            Assert.Equal("2215096317457eee", auth.RfpIv.ToHex());
-            Assert.Equal("e8b35e55ab2b30a0", auth.OmmIv.ToHex());
-
+                                             "57b858bb227549" +
+                                             "d72215096317457e" +
+                                             "eef01aa118ab156a" +
+                                             "d5e8b35e55ab2b30" +
+                                             "a0");
             Log(auth);
+            Assert.Equal("d72215096317457e", auth.RfpIv.ToHex());
+            Assert.Equal("d5e8b35e55ab2b30", auth.OmmIv.ToHex());
+
             //TODO Assert.False(auth.HasUnknown);
         }
 
+        [Fact]
+        public void CanSign()
+        {
+            var auth = HexEncoding.HexToByte(
+                "012d0020 a1ec05aa 36940a9c 027cc8ab e7045501 1c33e8aa c57860f6 ac9c2d00 432182b8"
+                    .Replace(" ", String.Empty));
+            var orig = HexEncoding.HexToByte(
+                ("012001100000000d 00080100 0030421b 17370000 00000000 0001ef3c 2a0d8ce8 725371d0 d799a029" +
+                "8dc02c73 4ac5b803 abc38663 b494de7b 2ffbe03d 70b616eb facf2e7d 85f61b29 5cba5c76 ea515501" +
+                "b3c02b75 5862261b fc08ffde 00080201 00000000 00000000 00000000 00000000 00000000 5349502d" +
+                "44454354 20382e31 5350332d 464b3234 00000000 00000000 00000000 00000000 00000000 00000000" +
+                "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                "00000000 00000000 00000000 00000000 00000000 cb8321c7 401dd174 d3b350fa faa7b770")
+                    .Replace(" ", String.Empty));
+            var signatureKey = HexEncoding.HexToByte(
+                "e7adda3adb0521f3d3fbdf3a18ee8648" +
+                "b47398b1570c2b45ef8d2a9180a1a32c" +
+                "69284a9c97d444abf87f5c578f942821" +
+                "4dd0183cba969dc5");
+
+            _output.WriteLine(orig.AsSpan().ToHex());
+            var init = new SysInitMessage(orig);
+            init.Sign(auth);
+            var created = new byte[0x114];
+            init.Serialize(created);
+            _output.WriteLine(created.AsSpan().ToHex());
+            var caps = SysInitMessage.RfpCapabilities.Reserved3 | 
+                       SysInitMessage.RfpCapabilities.Indoor |
+                       SysInitMessage.RfpCapabilities.Wlan |
+                       SysInitMessage.RfpCapabilities.Encryption |
+                       SysInitMessage.RfpCapabilities.FrequencyShift |
+                       SysInitMessage.RfpCapabilities.ConfigurableTX |
+                       SysInitMessage.RfpCapabilities.Reserved12 |
+                       SysInitMessage.RfpCapabilities.Reserved14 |
+                       SysInitMessage.RfpCapabilities.Reserved15 |
+                       SysInitMessage.RfpCapabilities.AdvancedFeature |
+                       SysInitMessage.RfpCapabilities.WlanDfsSupported;
+            init = new SysInitMessage(PhysicalAddress.Parse("0030421b1737"), caps);
+            init.Sign(auth);
+            created = new byte[0x114];
+            init.Serialize(created);
+            _output.WriteLine(created.AsSpan().ToHex());
+        }
+
         [Fact]
         public void CanDecodeSysInitMessage()
         {
@@ -141,6 +189,28 @@ public void CanDecodeSysInitMessage()
                                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 cc59b116 bd3f31ef" +
                                          "34dd9fde 29b71133");
             Log(init);
+
+            init = Decode<SysInitMessage>("01200110 0000000d 00080100 0030421b 17370000 00000000 0001ef3c 2a0d8ce8 725371d0 d799a029" +
+                                          "8dc02c73 4ac5b803 abc38663 b494de7b 2ffbe03d 70b616eb facf2e7d 85f61b29 5cba5c76 ea515501" +
+                                          "b3c02b75 5862261b fc08ffde 00080201 00000000 00000000 00000000 00000000 00000000 5349502d" +
+                                          "44454354 20382e31 5350332d 464b3234 00000000 00000000 00000000 00000000 00000000 00000000" +
+                                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                                          "00000000 00000000 00000000 00000000 00000000 cb8321c7 401dd174 d3b350fa faa7b770");
+            var serialized = new byte[500];
+            init.Serialize(serialized);
+            var auth = HexEncoding.HexToByte("012d0020 a1ec05aa 36940a9c 027cc8ab e7045501 1c33e8aa c57860f6 ac9c2d00 432182b8".Replace(" ", String.Empty));
+            init.Sign(auth);
+            Log(init);
+
+            init = Decode<SysInitMessage>("01200104 00000011 00080000 08000fe0 151e0000 00000000 0001ef1c aece27b5 c1f0f091 a31e0cbc" +
+                                          "1c38a6b9 bcea10e1 6adf5595 6c15f6e3 d633903b 06c975cd f19050b5 681f3e2e 1c48f7e5 258526bb" +
+                                          "dd61d152 d065a6d0 121cf542 00080000 00000000 00000000 5349502d 44454354 20382e30 2d484630" +
+                                          "31444931 36000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                                          "00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000" +
+                                          "00000000 00000000 1779261c 5c73b323 20724091 67111e70");
+            Log(init);
         }
 
         [Fact]
diff --git a/RfpProxy.Traffic/Program.cs b/RfpProxy.Traffic/Program.cs
index 989b500..94d2ece 100644
--- a/RfpProxy.Traffic/Program.cs
+++ b/RfpProxy.Traffic/Program.cs
@@ -69,7 +69,7 @@ static async Task Main(string[] args)
                     }
                     else
                     {
-                        await client.AddHandlerAsync(0, mac, "ffffffffffff", "010e0018ac1417010f", "ffffffffffffffff0f", cts.Token);
+                        await client.AddHandlerAsync(0, mac, "ffffffffffff", "010e001800000000000000000000ffff0ac000195000000000adbeef", "ffffffffffffffffffffffffffffffffffffffff00000000ffffffff", cts.Token);
                     }
                     await client.FinishHandshakeAsync(cts.Token);
                     if (omm)
@@ -78,7 +78,7 @@ static async Task Main(string[] args)
                     }
                     else
                     {
-                        await client.WriteAsync(MessageDirection.ToRfp, 0, rfp, HexEncoding.HexToByte("010e000cac1417010f00000000000000"), cts.Token);
+                        await client.WriteAsync(MessageDirection.ToRfp, 0, rfp, HexEncoding.HexToByte("010e001800000000000000000000ffff0ac0001950000000deadbeef"), cts.Token);
                     }
                     await client.RunAsync(cts.Token);
                 }
@@ -107,9 +107,10 @@ public TrafficClient(bool omm, string socket) : base(socket)
                 }
                 else
                 {
-                    _ping = HexEncoding.HexToByte("010e000c" +
-                                                  "ac141701" +
-                                                  "0f00000000000000");
+                    _ping = HexEncoding.HexToByte("010e0018" +
+                                                  "00000000000000000000ffff0ac000195" +
+                                                  "0000000" +
+                                                  "deadbeef");
                 }
             }
 
diff --git a/SoftRfp/VirtualRfp.cs b/SoftRfp/VirtualRfp.cs
index 78cf603..33c7b64 100644
--- a/SoftRfp/VirtualRfp.cs
+++ b/SoftRfp/VirtualRfp.cs
@@ -49,9 +49,9 @@ public VirtualRfp(string mac, string omm)
 
         public async Task RunAsync(CancellationToken cancellationToken)
         {
-            using var connection = new TcpClient(AddressFamily.InterNetworkV6);
+            using var connection = new TcpClient(AddressFamily.InterNetwork);
             using var registration = cancellationToken.Register(() => connection.Close());
-            await connection.ConnectAsync(_omm, 16321);
+            await connection.ConnectAsync(_omm, 16321, cancellationToken);
             _socket = connection.Client;
             _auth = await ReadPacketAsync(cancellationToken);
             if (!await InitAsync(cancellationToken)) return;
@@ -76,7 +76,7 @@ public void SendMessage(AaMiDeMessage message)
 
         private async Task<bool> InitAsync(CancellationToken cancellationToken)
         {
-            var caps = RfpCapabilities.Indoor;
+            var caps = RfpCapabilities.Indoor | RfpCapabilities.Encryption | RfpCapabilities.AdvancedFeature;
             var init = new SysInitMessage(PhysicalAddress.Parse(_mac), caps);
             init.Sign(_auth.Span);
             await SendPacketAsync(init, cancellationToken);