I have a problem about block syncing, in the answer Ethereum Node Stuck, Can't Sync I didn't find a answer to my problem. I follow @BokkyPooBah answers, it shows my network is successful.
But geth still did not start sync and stop at
From the pic I am sure my network is correct, but I don't know what's the problem. Any Ideas, I appreciate it. My OS is centos 6.6.

