I am also having wallet sync issue.
Noticed earlier that it had lost all connections. 
Restarted wallet and now have 7 connections but stuck @block 144142.  Time stamp:  Fri Aug 11 13:21:00 2017

updated:  block count is not moving but block time is moving albeit slowly.  Time stamp: Sat Aug 12 10:30:57 2017


hmmm... just noticed this..... Current number of blocks: 1444033   Estimated total blocks: 1444142

also now have lost all connections.

Just restarted wallet: zero connections current # blocks: 1444033   722566      Estimated total blocks is bouncing between  480330  and 722566  ; time stamp: Sat Aug 12 10:30:57 2017

wallet version 1.3.1.0 windows 64-bit


EDIT:  est blocks now @ 1444132  same time stamp

With what I read here and seeing; it's looking like the chain may have forked.     Dev would need to confirm that.

My pool http://104.207.149.217 wallet is up to block 1444379 now.
Looks like I can mine and could find some blocks. Since there could be a big problem, payout is disabled. 

And all is good again

Are you sure? I still have out of sync.
Wallet offline at bittrex now also.

Stop try to fix it independently. We need official position from devs and fix instructions, may be fix in client too.

Please wait for respons from Joe.

I see several too while try to redownload blockchain.

@goldlabel: and your blockcount is?

could you post your output from command "getpeerinfo" ?

would help to investigate the chains.