diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index ac191e1f..dc26efaf 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -993,9 +993,9 @@ simnet.block = {
 
 simnet.bip30 = {};
 
-simnet.activationThreshold = 1512; // 75% for testchains
+simnet.activationThreshold = 75; // 75% for testchains
 
-simnet.minerWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
+simnet.minerWindow = 100; // nPowTargetTimespan / nPowTargetSpacing
 
 simnet.deployments = {
   testdummy: {
@@ -1008,15 +1008,15 @@ simnet.deployments = {
   csv: {
     name: 'csv',
     bit: 0,
-    startTime: 1456790400, // March 1st, 2016
-    timeout: 1493596800, // May 1st, 2017
+    startTime: 0, // March 1st, 2016
+    timeout: 0xffffffff, // May 1st, 2017
     force: true
   },
   segwit: {
     name: 'segwit',
     bit: 1,
-    startTime: 1462060800, // May 1st 2016
-    timeout: 1493596800, // May 1st 2017
+    startTime: 0, // May 1st 2016
+    timeout: 0xffffffff, // May 1st 2017
     force: false
   },
   mast: {
@@ -1061,6 +1061,6 @@ simnet.feeRate = 20000;
 
 simnet.maxFeeRate = 60000;
 
-simnet.selfConnect = true;
+simnet.selfConnect = false;
 
 simnet.requestMempool = false;