## Altcoin (Litecoin fork) creation. No synchronisation

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i m trying to create an altcoin from the current Litecoin master branch on github. Its Litecoin in the version of 0.15.1.

By editing some parameter in chainparams.cpp i m able to create my genesis block. But i cant get the network to synchronize!

I m running litecoind on a vps with all ports open, and i am able to connect to the node when i start the litecoin-qt on my machine (with -addnode or -connect to the vps).

On my vps i can see my machine with -getpeerinfo and its block count (0). On my machine i can see that it is connected to the litecoin node on my vps. When running generate on my vps, to create some blocks, i can even see on my machine, that the block count of my vps has risen. Still, there is no synchronization! The blockchain on my machine stays 0.

The litecoin-qt on my machine shows me "Connecting to Network" all time, even though it is connected to the litecoin node on the vps.

In chainparams.cpp i have edited the following sections:

pchMessageStart:

    pchMessageStart[0] = 0xf1;
pchMessageStart[1] = 0xc0;
pchMessageStart[2] = 0xb6;
pchMessageStart[3] = 0xd0;
nDefaultPort = 9333;
nPruneAfterHeight = 100000;


and the genesisblock:

genesis = CreateGenesisBlock(1512851040, 376896, 0x1e0ffff0, 1, 25 * COIN);

and the checkpoint (the genesis block i created):

      checkpointData = (CCheckpointData) {
{
{0,           uint256S("0x6213f0e07c17e4ccef1fd9d023b06ce7e8bdbddaf2c4175197149302b7c351e8")},
}
};

chainTxData = ChainTxData{
1512851400,
500,
0.06
};


Anything else is unchanged! Ports, etc. are alle the same as with Litecoin! Please help. debug.log shows no errors. Took different approaches with -listen, -server, -deamon and of course a .conf file. Nothing seems to help. This is the last step of my first chapter in blockchain development :)

chainTxData = ChainTxData{