Windows 10 private net can't connect to the other peers, geth: 1.8.11

Question

System information:

Geth version: Geth/1.8.11-unstable
OS & Version: WINDOWS10

I modified the main net Genesis config parameters in DefaultGenesisBlock in genesis.go,
and I replaced the MainnetBootnodes parameters with one line: enode://a4574b52d5ebc4414f1a55e656f66ca5647d891d5989e2bc3660141ec2c3fbed2dcd9bd50fc050915e3b8b96527f3fd9a8dfbcbdc9de3255fb948148ccd67603@192.168.2.210:30303

for learning Purpose.

Run geth.exe on 192.168.2.210 and 192.168.2.52.
The geth.exe on 2.52 can not connect to that on 2.210.
They are the same version that I build it. Cmd is "geth.exe console" with no other paras.
I've tried to use admin.addPeer() in geth and also failed.
net

{
  listening: true,
  peerCount: 0,
  version: "1",
  getListening: function(callback),
  getPeerCount: function(callback),
  getVersion: function(callback)
}

Answer 1

I assume you used admin.addPeer("192.168.2.252").

To connect with other peers you need NodeUrl.

Try this, go to first node cmd

admin.nodeInfo.enode

gives you the enode url. Copy it and in the next peer node cmd use admin.addPeer(NodeUrl)

Answer 2

I solved it by myself. It is due to the dao fork. The extradata validation does not pass cause the peers can't connect to each others.