Coins never arrived at destination, is there any way to track them down?

When transferring from a multibit wallet to an online blockchain.info wallet, the coins somehow got lost along the way.

The problem I seem to be having is described exactly here, https://multibit.org/en/help/v0.5/help_support_sentBitcoinFromMultibitButTheyAreStuck.html

The problem described here "In the 'Transactions Transactions' tab the transaction is shown with a square ("Seen by 1 peer") or, very rarely, a triangle ("Seen by 0 peers")." is exactly the problem that is occurring. The first fix involving restarting Multibit doesn't seem to be working.

What will 'resetting blockchain and transactions' do? Is this most likely going to fix the problem?

Thanks everyone!