Hi!
I have just recently joined up to whole Bitcoin community and I got some questions it would be nice if someone could help me / clarify few things to me.
Ill try my best, but some of your questions are probably best answered by someone on site
1. 0 active connections to Bitcoin Network in wallet Bitcoin Core version v0.9.1.0-g026a939-beta (32-bit)
A)The first time I had this problem was with v0.9.0 I somehow managed to reinstall Bitcoin Core wallet = I ended up losing little sum of bitcoins that I had and had to wait again for that long sync, so I guess I installed a new wallet on my computer, is that possible and does anyone know how I can retrieve my coins?
B)The second time I had this problem with current version this helped:
http://bitcoin.stackexchange.com/questions/12265/0-connections-now-but-i-had-been-using-bitcoin-qt-for-a-while-without-problemsNow I have the same problem, and the solution from above doesn't work, wallet won't sync as it has 0 connections, I am 5 days behind
The problem described in the link is about someone mining bitcoin. If you have problems with your DNS, contact your ISP (or whoever runs your DNS if you changed that)
2. How to use back-up files
So, when I go to File --> Backup Wallet --> I create a new .dat file, after I do it it gets a 'locker' and fades, I can see the file as I am doing backup and all backup files I created in the past, but I can't see those when I try to find them again browsing through my files on computer
That means I don't know how to start backed up file, because I don't know where it is (or better said I do know, but I can't see and run it)
You can choose the place where you save that .dat file. Choose a place that you can find it.
Here is a list where your wallet usually is
https://en.bitcoin.it/wiki/Securing_your_wallet#Making_a_new_walletYou can just copy that file somewhere else as backup. It makes now difference if the programm makes a copy for you or if you do it yourself.
"run it"? The wallet can not be run itself, its just a file containing your valueable data, not the programm itself.
3. I want to put my coins to a safe place, make a physical backup, like on usb, how do I do that? And how do I place those back into my wallet? I have been reading about this but it is all so complicated, I really need some help and advice on this one
The "coins" are not stored in your wallet, but the private keys that allow you to spend them. So if you secure your wallet.dat you secure the coins. You dont have to place the wallet.dat back, unless the file is corrupted for some reason. You should make sure that you make backups on a regular basis, because bitcoin core generates new keys (and addresses for that matter) from time to time. As long as your wallet.dat has a reasonable strong password, all you need to do is copy that file somewhere safe (USB Sticky, etc.).