INFO [07-19|12:11:51] Imported new block receipts count=590 elapsed=8.440s bytes=74117699 number=4870906 hash=6bc60b…934753 ignored=0
INFO [07-19|12:11:57] Imported new state entries count=499 elapsed=9.963ms processed=71076 pending=1526 retry=2 duplicate=0 unexpected=384
WARN [07-19|12:12:05] Stalling state sync, dropping peer peer=ce5db7601fa43fe0
WARN [07-19|12:12:06] Stalling state sync, dropping peer peer=aa7f4024eb42bd70
WARN [07-19|12:12:09] Stalling state sync, dropping peer peer=868d7f91fb0463d1
WARN [07-19|12:12:10] Stalling state sync, dropping peer peer=b6490529f4b4848d
WARN [07-19|12:12:11] Stalling state sync, dropping peer peer=146c324e5559b344
WARN [07-19|12:12:11] Node data write error err="state node eb281e…3b0157 failed with all peers (2 tries, 2 peers)"
The solution is to update to the latest Ethereum client and wipeout your "chaindata" if that doesn't work. Ethereum is a work in progress and unlike stable currencies like Bitcoin and Litecoin it must be updated to the latest version or things won't work (which means almost weekly updates!).