Wallet is not syncing (general). Why and what can be done?

[manicminer44]

It happened to me several times with minor altcoins. The last one is Giftcoin. At one day the wallet just stops syncing. It got me puzzled, since as I know the whole cryptocoin system builds on p2p scheme. I have several connection, still the wallet is not syncing. What could be the reason? I am not asking this about a specific altcoin, but generally, what could cause a wallet not to sync for every user? Is there anything that can be done as an ordinary user to solve this problem?

[majika]

Hi,

I'm by far no expert, however, there are a couple of things you should check.

make sure you have the correct altcoin-qt client for whichever coin you are mining with.

Also, make sure the altcoin in question has not branched off into another block-chain and thus you may have been syncing to the *incorrect* block-chain.

make sure you have the correct super-nodes IP addresses inside your *.conf file from whom you are syncing with.
EXAMPLE *.CONF

Code:

rpcuser=doge  <-- check this is correct for your altcoin
rpcpassword=wow     <-- check this is correct for your altcoin
rpcport=22555          <-- check this is correct for your altcoin

rpcallowip=127.0.0.1   <-- Maybe need to add this rule
rpcallowip=192.168.*.*    <-- Maybe need to add this rule

addnode=95.85.29.144     <-- Super-node for this specific altcoin (DOGE)
addnode=162.243.113.110
addnode=146.185.181.114
addnode=188.165.19.28
addnode=166.78.155.36
addnode=doge.netcodepool.org
addnode=doge.cryptoculture.net
addnode=dogepool.pw
addnode=78.46.57.132

daemon=1

also check you have allowed inbound traffic access to these IP-nodes (or at the very least, these nodes are *not* being blocked).
check the RPC ports are configured correctly..
If you still have no luck check this forum for help or try readit threads for your specific altcoin which you are having issues syncing with.

If all else fails try to see if there is a bootstrap.dat of the block chain which you can download yourself and sync with your client manually (faster method)