diff --git a/bitcoin.cpp b/bitcoin.cpp
index f15d2e3..fc113b9 100644
--- a/bitcoin.cpp
+++ b/bitcoin.cpp
@@ -80,7 +80,7 @@ class CNode {
     CAddress me(CService("0.0.0.0"));
     BeginMessage("version");
     int nBestHeight = GetRequireHeight();
-    string ver = "/zclassic-seeder:1.00/";
+    string ver = "/btcpseeder:0.01/";
     vSend << PROTOCOL_VERSION << nLocalServices << nTime << you << me << nLocalNonce << ver << nBestHeight;
     EndMessage();
   }
diff --git a/main.cpp b/main.cpp
index f836bda..9e41321 100644
--- a/main.cpp
+++ b/main.cpp
@@ -184,11 +184,7 @@ extern "C" void* ThreadCrawler(void* data) {
       res.nHeight = 0;
       res.strClientV = "";
       bool getaddr = res.ourLastSuccess + 86400 < now;
-      if (res.service.GetPort() == GetDefaultPort()) {
-          res.fGood = TestNode(res.service,res.nBanTime,res.nClientV,res.strClientV,res.nHeight,getaddr ? &addr : NULL);
-      } else {
-          res.fGood = false;
-      }
+      res.fGood = TestNode(res.service,res.nBanTime,res.nClientV,res.strClientV,res.nHeight,getaddr ? &addr : NULL);
     }
     db.ResultMany(ips);
     db.Add(addr);
@@ -394,7 +390,7 @@ extern "C" void* ThreadStats(void*) {
   return nullptr;
 }
 
-static const string mainnet_seeds[] = {"na1.zclassic.org","seed.zcl.chains.run",""};
+static const string mainnet_seeds[] = {"dnsseed.btcprivate.org",""};
 static const string testnet_seeds[] = {""};
 static const string *seeds = mainnet_seeds;
 
@@ -452,10 +448,10 @@ int main(int argc, char **argv) {
   bool fDNS = true;
   if (opts.fUseTestNet) {
       printf("Using testnet.\n");
-      pchMessageStart[0] = 0x0b;
-      pchMessageStart[1] = 0x11;
-      pchMessageStart[2] = 0x09;
-      pchMessageStart[3] = 0x07;
+      pchMessageStart[0] = 0xf6;
+      pchMessageStart[1] = 0x1b;
+      pchMessageStart[2] = 0xf6;
+      pchMessageStart[3] = 0xd6;
       seeds = testnet_seeds;
       fTestNet = true;
   }
diff --git a/protocol.cpp b/protocol.cpp
index 3ba3b71..ef7fef8 100644
--- a/protocol.cpp
+++ b/protocol.cpp
@@ -22,7 +22,7 @@ static const char* ppszTypeName[] =
     "block",
 };
 
-unsigned char pchMessageStart[4] = { 0x24, 0xe9, 0x27, 0x64 };
+unsigned char pchMessageStart[4] = { 0xa8, 0xea, 0xa2, 0xcd };
 
 CMessageHeader::CMessageHeader()
 {
diff --git a/protocol.h b/protocol.h
index e18a200..f8cc2a9 100644
--- a/protocol.h
+++ b/protocol.h
@@ -18,7 +18,7 @@
 extern bool fTestNet;
 static inline unsigned short GetDefaultPort(const bool testnet = fTestNet)
 {
-    return testnet ? 18033 : 8033;
+    return testnet ? 17933 : 7933;
 }
 
 //
diff --git a/serialize.h b/serialize.h
index 3987ccb..cbf6c13 100644
--- a/serialize.h
+++ b/serialize.h
@@ -60,7 +60,7 @@ class CDataStream;
 class CAutoFile;
 static const unsigned int MAX_SIZE = 0x02000000;
 
-static const int PROTOCOL_VERSION = 170002;
+static const int PROTOCOL_VERSION = 180003;
 
 // Used to bypass the rule against non-const reference to temporary
 // where it makes sense with wrappers such as CFlatData or CTxDB