I have fifteen Cryptocurrency Wallets constantly running on one of my computers, Everything worked well, recently I added few more coins and all wallets have got synchronization issues (not syncing). I shut down several of them and things got working again. I tested that it is wallet independent problem, closing any of them solves problem, but I have to run all wallets constantly.

I am using windows 7, 64 bit, RAM 8 gb, only 50% of Ram and 10% of CPU is used in average. My Internet speed: 4 Mb Download, 0.25 Upload. My traffic (checked by freemeter) ~ 0.2 Mb Download 0.05 Mb Upload.

Can someone suggest what might be a problem?

  • This sounds very much like you already know the answer to your question. Its an issue of bandwidth, there are a few things you can try to do to reduce the load first thing I would suggest is reduce your -maxconnections= on each client, it will reduce their overall footprint. – hafnero Mar 9 '14 at 8:38
  • you can allso adjust -blockminsize=<n> Set minimum block size in bytes (default: 0) -blockmaxsize=<n> Set maximum block size in bytes (default: 250000) -blockprioritysize=<n> Set maximum size of high-priority/low-fee transactions in bytes (default: 27000) -mintxfee=<m.n> Minimum fee-per-kilobyte to qualify as fee-paying (default: 0.0001) these will effect what transactions your client will and will not relay based on their size and the fee value. This can also help reduce unnecessary network load. – hafnero Mar 9 '14 at 8:41

Many clients running at once will of course take up a lot CPU and RAM. Syncing is a CPU/RAM intensive task as well. Consider running one at a time?

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