diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index e1dd34557..25e891232 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -166,10 +166,10 @@ public:
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1548288000; // Jan 24, 2019
 
         // The best chain should have at least this much work.
-        consensus.nMinimumChainWork = uint256S("00000000000000000000000000000000000000000000024108e3204a44a57a5a"); //621000
+        consensus.nMinimumChainWork = uint256S("0000000000000000000000000000000000000000000002bfdb5232f364d6774e"); //700k
 
         // By default assume that the signatures in ancestors of this block are valid.
-        consensus.defaultAssumeValid = uint256S("7899464514d0d8854919e87eb234fd5f0c35d06418bd5fd3c1a8f7092b2a9317"); //620000
+        consensus.defaultAssumeValid = uint256S("beaf6432c9a7be3ea8c333bd7a90d4b3e07b0f20c86aa2e5dfebc9eba340201c"); //700k
 
         /**
          * The message start string is designed to be unlikely to occur in normal data.
diff --git a/src/net.cpp b/src/net.cpp
index 14f5013c2..50fbb8163 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1262,7 +1262,8 @@ void CConnman::ThreadSocketHandler()
         for (const ListenSocket& hListenSocket : vhListenSocket) {
 #ifdef USE_POLL
             pollfds[hListenSocket.socket].fd = hListenSocket.socket;
-            pollfds[hListenSocket.socket].events |= POLLIN;
+            pollfds[hListenSocket.socket].events = POLLIN;
+            pollfds[hListenSocket.socket].revents = 0;
 #else
             FD_SET(hListenSocket.socket, &fdsetRecv);
             hSocketMax = std::max(hSocketMax, hListenSocket.socket);
@@ -1298,7 +1299,8 @@ void CConnman::ThreadSocketHandler()
 
 #ifdef USE_POLL
                 pollfds[pnode->hSocket].fd = pnode->hSocket;
-                pollfds[pnode->hSocket].events |= POLLERR|POLLHUP;
+                pollfds[pnode->hSocket].events = POLLERR|POLLHUP;
+                pollfds[pnode->hSocket].revents = 0;
 #else
                 FD_SET(pnode->hSocket, &fdsetError);
                 hSocketMax = std::max(hSocketMax, pnode->hSocket);
@@ -1307,7 +1309,6 @@ void CConnman::ThreadSocketHandler()
 
                 if (select_send) {
 #ifdef USE_POLL
-                    pollfds[pnode->hSocket].fd = pnode->hSocket;
                     pollfds[pnode->hSocket].events |= POLLOUT;
 #else
                     FD_SET(pnode->hSocket, &fdsetSend);
@@ -1316,7 +1317,6 @@ void CConnman::ThreadSocketHandler()
                 }
                 if (select_recv) {
 #ifdef USE_POLL
-                    pollfds[pnode->hSocket].fd = pnode->hSocket;
                     pollfds[pnode->hSocket].events |= POLLIN;
 #else
                     FD_SET(pnode->hSocket, &fdsetRecv);
diff --git a/src/netbase.cpp b/src/netbase.cpp
index 0358d2a44..ab6548032 100644
--- a/src/netbase.cpp
+++ b/src/netbase.cpp
@@ -272,9 +272,10 @@ static IntrRecvError InterruptibleRecv(uint8_t* data, size_t len, int timeout, c
                 // we're approaching the end of the specified total timeout
                 int timeout_ms = std::min(endTime - curTime, maxWait);
 #ifdef USE_POLL
-                struct pollfd pollfd = {};
+                struct pollfd pollfd;
                 pollfd.fd = hSocket;
                 pollfd.events = POLLIN;
+                pollfd.revents = 0;
                 int nRet = poll(&pollfd, 1, timeout_ms);
 #else
                 struct timeval tval = MillisToTimeval(timeout_ms);
@@ -514,9 +515,10 @@ bool ConnectSocketDirectly(const CService &addrConnect, const SOCKET& hSocket, i
         if (nErr == WSAEINPROGRESS || nErr == WSAEWOULDBLOCK || nErr == WSAEINVAL)
         {
 #ifdef USE_POLL
-            struct pollfd pollfd = {};
+            struct pollfd pollfd;
             pollfd.fd = hSocket;
             pollfd.events = POLLIN | POLLOUT;
+            pollfd.revents = 0;
             int nRet = poll(&pollfd, 1, nTimeout);
 #else
             struct timeval timeout = MillisToTimeval(nTimeout);