diff --git a/src/masternodeman.cpp b/src/masternodeman.cpp
index 6f7df18b6c..fda6f89e05 100644
--- a/src/masternodeman.cpp
+++ b/src/masternodeman.cpp
@@ -22,6 +22,8 @@
 #include "util.h"
 #include "warnings.h"
 
+#include "evo/deterministicmns.h"
+
 /** Masternode manager */
 CMasternodeMan mnodeman;
 
@@ -79,6 +81,9 @@ bool CMasternodeMan::Add(CMasternode &mn)
 {
     LOCK(cs);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return false;
+
     if (Has(mn.outpoint)) return false;
 
     LogPrint("masternode", "CMasternodeMan::Add -- Adding new Masternode: addr=%s, %i now\n", mn.addr.ToString(), size() + 1);
@@ -94,6 +99,9 @@ void CMasternodeMan::AskForMN(CNode* pnode, const COutPoint& outpoint, CConnman&
     CNetMsgMaker msgMaker(pnode->GetSendVersion());
     LOCK(cs);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     CService addrSquashed = Params().AllowMultiplePorts() ? (CService)pnode->addr : CService(pnode->addr, 0);
     auto it1 = mWeAskedForMasternodeListEntry.find(outpoint);
     if (it1 != mWeAskedForMasternodeListEntry.end()) {
@@ -151,6 +159,10 @@ bool CMasternodeMan::DisallowMixing(const COutPoint &outpoint)
 bool CMasternodeMan::PoSeBan(const COutPoint &outpoint)
 {
     LOCK(cs);
+
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return true;
+
     CMasternode* pmn = Find(outpoint);
     if (!pmn) {
         return false;
@@ -164,6 +176,9 @@ void CMasternodeMan::Check()
 {
     LOCK2(cs_main, cs);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     for (auto& mnpair : mapMasternodes) {
         // NOTE: internally it checks only every MASTERNODE_CHECK_SECONDS seconds
         // since the last time, so expect some MNs to skip this
@@ -173,6 +188,9 @@ void CMasternodeMan::Check()
 
 void CMasternodeMan::CheckAndRemove(CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     if(!masternodeSync.IsMasternodeListSynced()) return;
 
     LogPrintf("CMasternodeMan::CheckAndRemove\n");
@@ -418,6 +436,9 @@ void CMasternodeMan::DsegUpdate(CNode* pnode, CConnman& connman)
     CNetMsgMaker msgMaker(pnode->GetSendVersion());
     LOCK(cs);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     CService addrSquashed = Params().AllowMultiplePorts() ? (CService)pnode->addr : CService(pnode->addr, 0);
     if(Params().NetworkIDString() == CBaseChainParams::MAIN) {
         if(!(pnode->addr.IsRFC1918() || pnode->addr.IsLocal())) {
@@ -740,6 +761,9 @@ void CMasternodeMan::ProcessMasternodeConnections(CConnman& connman)
 std::pair<CService, std::set<uint256> > CMasternodeMan::PopScheduledMnbRequestConnection()
 {
     LOCK(cs);
+    if (deterministicMNManager->IsDeterministicMNsSporkActive()) {
+        return std::make_pair(CService(), std::set<uint256>());
+    }
     if(listScheduledMnbRequestConnections.empty()) {
         return std::make_pair(CService(), std::set<uint256>());
     }
@@ -766,6 +790,9 @@ std::pair<CService, std::set<uint256> > CMasternodeMan::PopScheduledMnbRequestCo
 
 void CMasternodeMan::ProcessPendingMnbRequests(CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     std::pair<CService, std::set<uint256> > p = PopScheduledMnbRequestConnection();
     if (!(p.first == CService() || p.second.empty())) {
         if (connman.IsMasternodeOrDisconnectRequested(p.first)) return;
@@ -805,6 +832,9 @@ void CMasternodeMan::ProcessPendingMnbRequests(CConnman& connman)
 
 void CMasternodeMan::ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     if(fLiteMode) return; // disable all Dash specific functionality
 
     if (strCommand == NetMsgType::MNANNOUNCE) { //Masternode Broadcast
@@ -1001,6 +1031,9 @@ void CMasternodeMan::PushDsegInvs(CNode* pnode, const CMasternode& mn)
 
 void CMasternodeMan::DoFullVerificationStep(CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     if(activeMasternodeInfo.outpoint.IsNull()) return;
     if(!masternodeSync.IsSynced()) return;
 
@@ -1078,6 +1111,9 @@ void CMasternodeMan::DoFullVerificationStep(CConnman& connman)
 
 void CMasternodeMan::CheckSameAddr()
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     if(!masternodeSync.IsSynced() || mapMasternodes.empty()) return;
 
     std::vector<CMasternode*> vBan;
@@ -1131,6 +1167,9 @@ void CMasternodeMan::CheckSameAddr()
 
 bool CMasternodeMan::SendVerifyRequest(const CAddress& addr, const std::vector<const CMasternode*>& vSortedByAddr, CConnman& connman)
 {
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return false;
+
     if(netfulfilledman.HasFulfilledRequest(addr, strprintf("%s", NetMsgType::MNVERIFY)+"-request")) {
         // we already asked for verification, not a good idea to do this too often, skip it
         LogPrint("masternode", "CMasternodeMan::SendVerifyRequest -- too many requests, skipping... addr=%s\n", addr.ToString());
@@ -1152,6 +1191,9 @@ void CMasternodeMan::ProcessPendingMnvRequests(CConnman& connman)
 {
     LOCK(cs_mapPendingMNV);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     std::map<CService, std::pair<int64_t, CMasternodeVerification> >::iterator itPendingMNV = mapPendingMNV.begin();
 
     while (itPendingMNV != mapPendingMNV.end()) {
@@ -1181,6 +1223,9 @@ void CMasternodeMan::SendVerifyReply(CNode* pnode, CMasternodeVerification& mnv,
 {
     AssertLockHeld(cs_main);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     // only masternodes can sign this, why would someone ask regular node?
     if(!fMasternodeMode) {
         // do not ban, malicious node might be using my IP
@@ -1238,6 +1283,9 @@ void CMasternodeMan::ProcessVerifyReply(CNode* pnode, CMasternodeVerification& m
 {
     AssertLockHeld(cs_main);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     std::string strError;
 
     // did we even ask for it? if that's the case we should have matching fulfilled request
@@ -1374,6 +1422,9 @@ void CMasternodeMan::ProcessVerifyBroadcast(CNode* pnode, const CMasternodeVerif
 {
     AssertLockHeld(cs_main);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
+
     std::string strError;
 
     if(mapSeenMasternodeVerification.find(mnv.GetHash()) != mapSeenMasternodeVerification.end()) {
@@ -1509,6 +1560,9 @@ bool CMasternodeMan::CheckMnbAndUpdateMasternodeList(CNode* pfrom, CMasternodeBr
     // Need to lock cs_main here to ensure consistent locking order because the SimpleCheck call below locks cs_main
     LOCK(cs_main);
 
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return false;
+
     {
         LOCK(cs);
         nDos = 0;
@@ -1621,6 +1675,8 @@ void CMasternodeMan::UpdateLastPaid(const CBlockIndex* pindex)
 void CMasternodeMan::UpdateLastSentinelPingTime()
 {
     LOCK(cs);
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
     nLastSentinelPingTime = GetTime();
 }
 
@@ -1653,6 +1709,8 @@ void CMasternodeMan::RemoveGovernanceObject(uint256 nGovernanceObjectHash)
 void CMasternodeMan::CheckMasternode(const CKeyID& keyIDOperator, bool fForce)
 {
     LOCK2(cs_main, cs);
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
     for (auto& mnpair : mapMasternodes) {
         if (mnpair.second.keyIDOperator == keyIDOperator) {
             mnpair.second.Check(fForce);
@@ -1671,6 +1729,8 @@ bool CMasternodeMan::IsMasternodePingedWithin(const COutPoint& outpoint, int nSe
 void CMasternodeMan::SetMasternodeLastPing(const COutPoint& outpoint, const CMasternodePing& mnp)
 {
     LOCK(cs);
+    if (deterministicMNManager->IsDeterministicMNsSporkActive())
+        return;
     CMasternode* pmn = Find(outpoint);
     if(!pmn) {
         return;
diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index d53c38bfd2..2bc080e9af 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -1201,16 +1201,20 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam
                 }
 
                 if (!push && inv.type == MSG_MASTERNODE_ANNOUNCE) {
-                    if(mnodeman.mapSeenMasternodeBroadcast.count(inv.hash)){
-                        connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::MNANNOUNCE, mnodeman.mapSeenMasternodeBroadcast[inv.hash].second));
-                        push = true;
+                    if (!deterministicMNManager->IsDeterministicMNsSporkActive()) {
+                        if (mnodeman.mapSeenMasternodeBroadcast.count(inv.hash)) {
+                            connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::MNANNOUNCE, mnodeman.mapSeenMasternodeBroadcast[inv.hash].second));
+                            push = true;
+                        }
                     }
                 }
 
                 if (!push && inv.type == MSG_MASTERNODE_PING) {
-                    if(mnodeman.mapSeenMasternodePing.count(inv.hash)) {
-                        connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::MNPING, mnodeman.mapSeenMasternodePing[inv.hash]));
-                        push = true;
+                    if (!deterministicMNManager->IsDeterministicMNsSporkActive()) {
+                        if (mnodeman.mapSeenMasternodePing.count(inv.hash)) {
+                            connman.PushMessage(pfrom, msgMaker.Make(NetMsgType::MNPING, mnodeman.mapSeenMasternodePing[inv.hash]));
+                            push = true;
+                        }
                     }
                 }