Oops! I was using the [] when entering the address. Your response fixed the problem and gave me the private key.

So far I am successfully downloading Bitcoin-QT on another computer. I have about a year of blocks left to download. Thank you for all of your support. I didn't not do a good job of researching this wallet beforehand. Other than it was the most secure. 

My wallet was unlocked before I did the dumpprivkey[] call. Yet, I still got the Invalid Bitcoin address (code -5).

I went to Blockchain.info to find the right address. It lists:

Total Transactions = 1
Total Received = amount of my BC transaction
Total Balance = amount of my BC transaction

Why Bitcoin-QT telling me my address code is invalid when Blockchain.info recognizes it? Why does Blockchain list BC received when I have not completed the transaction so to speak?

The initial synchronization is beginning to be a hassle so I thought I might get my private key and transfer my wallet to Blockchain.info.

I followed the directions in [How do I export my private keys from my Bitcoin-QT?] to get my private key. All I get back for dumpprivkey[] is Invalid Bitcoin address (code -5). I thought maybe I had the wrong address so I entered listreceivedbyaddress 0 true.

There are only a couple of addresses since I have a new wallet. All of the addresses returned the same Invalid Bitcoin address. What is going on? I know one of these addresses was used to give to an exchange for my new BC. Is it simply because my blockchain is incomplete and the transaction is incomplete?

Here is the log right before it shut down again.

2015-09-19 18:53:58 LoadExternalBlockFile: Processing out of order child 000000000000007e163d3c7e43d39c5616e334249e3584dfbed7b9266f5e818a of 000000000000013e3836ba653f5b31c02bcadd70b1b1b8d0eacf89ab927360f2
2015-09-19 18:53:58 LevelDB read failure: Corruption: block checksum mismatch
2015-09-19 18:53:58 Corruption: block checksum mismatch
2015-09-19 18:54:18 Error reading from database: Database corrupted

Would you let me know specifically what I need to do uninstall/reinstall while saving my keys? Do I simply need to save my wallet.dat file and reinsert into ~/Library/Application Support/Bitcoin/ after reinstall?

The debug log is huge. Would you let me know what specifically to look for in there?

My saga continues. I thought reindexing was the answer to my problems. I entered /Applications/Bitcoin-Qt.app/Contents/MacOS/Bitcoin-Qt -reindex into my terminal. Everything was going fine for a while until Bitcoin crashed. I keep getting "Error reading data from database."

Now I am stuck in reindexing with Bitcoin continually crashing. Would someone point me to straightforward instructions on uninstalling/reinstalling the Bitcoin-QT while maintaining my existing keys? Do I just need to pull out my wallet.dat file?

I also tried importing my wallet.dat file into Blockchain.info in hopes to simply drop QT altogether but I keep getting connection refused. Isn't it looking for my encryption passphrase when it requests a password? Please someone help b/c I am about to throw my computer out the window.

I have ping times ranging from 50-800 ms on my eight outbound peers. So I don't think that is a problem.

It appears there is synching occurring but there is a disconnect with my blockchain. After putting in the time to try and resolve this issue I would rather not go down another rabbit hole. Is there anything I can do to get my blockchain to reflect the recently downloaded activity.

I have been synching all day through peers. There 8 outbound connections working to a current sync height of 375150.  Unfortunately, none of this peer synching is making it onto my own blockchain on file.

My blockchain has remained at 340401 for over a day since correcting my network problem. Closing and opening the app seems to have no affect. Occasionally, I will open Bitcoin back up and my wallet will show "no block chain available." Closing and reopening again seems to fix the problem. Although nothing changed with my blockchain.

Is there any solution to my dilemma. I have been told to sit tight, but I have done this for over a day with no change. Would it be best to uninstall and reinstall? How do I transfer my keys?

It indicates 33MB received and 3 MB sent since restart in the network traffic window.

Not sure how to read the disk load other than this indicator. The wallet synch arrow on the bottom right has not moved since acquiring a new ISP. Any ideas?

Ok, the starting height of all peers is 375058 which is greater than the 340401 blocks shown in my wallet. The network traffic tab indicated >80MB received so it appears the problem is not with my peers.

None of this traffic is being added to my block. I restarted Bitcoin to see if that would fix the problem. The message "No block source available" has disappeared but my blocks remain at 340401. What is the disconnect between my peers and my own block?

Yes, I just read the instructions noting inbound connections strictly support the network which I don't care for now. It appears I do have the requisite 8 outbound connections to download. One last question, I see in the debug window a number of KB are being sent by peers. Yet I have been stuck on 340401 blocks the last half hour. Plus, the Bitcoin window shows no block source available and the right corner shows no movement on the synching arrow. Why does it appear my peer activity is being received but this is disconnected to what my wallet is indicating?

The only step I have not followed is connecting through other nodes. I would prefer to avoid this if possible. I did just go into Bitcoin preferences since updating ISP and toggled off the "Connect through SOCKS5 using Port 8333." Since this change I now have gone from Number of connections In: 1/Out: 0 to In: 0/ Out: 8. I am not going to download anything if I have no connections in, correct?

I have acquired my own internet service. My apartment complex router seemed to be blocking the blockchain download. The only problem is I have been running Bitcoin all day on my new ISP and there is no synching occurring. I am using OS X 10.10 with 12 GB of memory. I have 879GB of storage available. There is no firewall on my computer and no ports are blocked on my router.

Would someone please give me some help? I am at a loss to explain why the download is still not synching since my change in ISP. Do I need to uninstall Bitcoin and reinstall? I am still trying to complete a transaction and need to keep my current keys. Please give me any idea on how to solve this problem.

I did just open the debug.log and it is just a series of "Error  reading proxy response"

I don't know if that explains anything. Do you think if I started my own ISP that would solve my problem? I could then reconfigure the modem.

ISP: Consolidated Communications, Inc.
# of Connections: 1 (In: 1 / Out: 0)
No bars in the right corner of any color

I may need to break down and get my own internet service to get this download completed. I think the problem is with the apartment complex' modem and I can't reconfigure it. Any further ideas? You have been immensely helpful.

Is it possible to take my wallet.dat file and address to another wallet?

Ok. I checked out the Debug window. The number of connections shows 1 In - so I am good there. I changed the Port back to 8333 on Bitcoin and no adverse consequences. I have a Mac and no Firewall - so good there.

I am using a semi-public network connection through my apartment complex for my desktop which is a problem. I don't see my being able to change the Port for this modem and I expect this is the issue with my halted download.

I am stuck at 340401 blocks at Jan 2015. The torrent file is dated Jul 2015 wouldn't that help? Still don't know how to get QT to load the torrent file. Finally, if I am unable to change the Port on the modem would it be possible to transfer my wallet.dat and key to another wallet. I am still waiting to complete this payment.

I am setting up a new wallet and new to Bitcoin. Everything was going fine from my initial synchronization despite the fact I am using a slow group network connection through my apartment. I kept my computer on the first day to finish the download. The problem began once I reached 31 weeks where I have remained the last 3 days.

No movement has occurred at all over this period despite the fact QT indicates it is synchronizing with network. I checked on whether my port was open on bitcoin.org/en/full-node#enabling-connections and no luck. Currently my Port is 9050 and uncertain if setting it to 8333 would help. Actually, I tried this and it didn't seem to do anything. I have also placed the bitcoin-0.11.0.torrent file in ~/Library/Application Support/Bitcoin/.

Admittedly, I am no programmer and uncertain how to get the torrent file to load into QT. Does anyone have any advice for a Mac 10.10 user who is pretty clueless to this point about Bitcoin? I need to get this download to complete and after spending close to a week on the project I am at my wits end. Finally, I am expecting a payment that has yet to reach my wallet due to the halted download. Would it be possible to transfer my wallet.dat to another wallet that does not require such extensive setup?