How often does this happen? (0 blocks in the last 20 minutes)
0
0
[P2P3] WARNING cn src/cryptonote_core/cryptonote_core.cpp:2048 There were 0 blocks in the last 20 minutes, there might be large hash rate changes, or we might be partitioned, cut off from the Monero network or under attack, or your computer's time is off. Or it could be just sheer bad luck.