Der Bitcoin-qt Client schreibt eine Logdatei. Die heisst "debug.log". Die liegt im gleichen Ordner, wie die "wallet.dat"
Schau mal mit einem Texteditor rein in die debug.log. Evtl. steht da ein Hinweis auf ein Problem drin.
Ansonsten würde ich erst mal 2...3 Stunden warten. Das Synchronisieren kann seeeehr lange dauern.
So das ist von heute, der PC läuft seit ca. 7:00Uhr oder so. Gestern lief er weitere 4 Stunden ohne eine Änderung. Da steht wohl Error aber ich weiß nicht wirklich was das ist.
2014-07-01 05:47:31 Bitcoin version v0.9.2.1-g354c0f3-beta (Thu, 19 Jun 2014 09:51:15 +0200)
2014-07-01 05:47:31 Using OpenSSL version OpenSSL 1.0.1h 5 Jun 2014
2014-07-01 05:47:31 Using BerkeleyDB version Berkeley DB 4.8.30: (April 9, 2010)
2014-07-01 05:47:31 Default data directory C:\Users\Jeti\AppData\Roaming\Bitcoin
2014-07-01 05:47:31 Using data directory C:\Users\Jeti\AppData\Roaming\Bitcoin
2014-07-01 05:47:32 Using at most 125 connections (2048 file descriptors available)
2014-07-01 05:47:32 Using 4 threads for script verification
2014-07-01 05:47:32 Using wallet wallet.dat
2014-07-01 05:47:32 init message: Verifiziere Wallet...
2014-07-01 05:47:32 CDBEnv::Open : LogDir=C:\Users\Jeti\AppData\Roaming\Bitcoin\database ErrorFile=C:\Users\Jeti\AppData\Roaming\Bitcoin\db.log
2014-07-01 05:47:35 Bound to [::]:8333
2014-07-01 05:47:35 Bound to 0.0.0.0:8333
2014-07-01 05:47:35 init message: Lade Blockindex...
2014-07-01 05:47:36 Opening LevelDB in C:\Users\Jeti\AppData\Roaming\Bitcoin\blocks\index
2014-07-01 05:47:37 Opened LevelDB successfully
2014-07-01 05:47:37 Opening LevelDB in C:\Users\Jeti\AppData\Roaming\Bitcoin\chainstate
2014-07-01 05:48:21 Opened LevelDB successfully
2014-07-01 05:50:26 LoadBlockIndexDB(): last block file = 130
2014-07-01 05:50:26 LoadBlockIndexDB(): last block file info: CBlockFileInfo(blocks=335, size=89194072, heights=294666...295000, time=2014-04-07...2014-04-09)
2014-07-01 05:50:26 LoadBlockIndexDB(): transaction index disabled
2014-07-01 05:50:26 LoadBlockIndexDB(): hashBestChain=000000000000000004fea6413d3c67dfd4c5d7bcdfb67dac4623c7fdf1ed79bf height=288924 date=2014-03-04 19:46:17 progress=0.577454
2014-07-01 05:50:26 init message: Verifiziere Blöcke...
2014-07-01 05:50:26 Verifying last 288 blocks at level 3
2014-07-01 05:54:20 No coin database inconsistencies in last 289 blocks (160294 transactions)
2014-07-01 05:54:21 block index 405846ms
2014-07-01 05:54:21 init message: Lade Wallet...
2014-07-01 05:54:23 nFileVersion = 90201
2014-07-01 05:54:23 Keys: 101 plaintext, 0 encrypted, 101 w/ metadata, 101 total
2014-07-01 05:54:23 wallet 2119ms
2014-07-01 05:54:23 init message: Lade Adressen...
2014-07-01 05:54:24 Loaded 14172 addresses from peers.dat 445ms
2014-07-01 05:54:36 mapBlockIndex.size() = 295001
2014-07-01 05:54:36 nBestHeight = 288924
2014-07-01 05:54:36 setKeyPool.size() = 100
2014-07-01 05:54:36 mapWallet.size() = 0
2014-07-01 05:54:36 mapAddressBook.size() = 1
2014-07-01 05:54:36 msghand thread start
2014-07-01 05:54:36 opencon thread start
2014-07-01 05:54:36 ext-ip thread start
2014-07-01 05:54:36 dumpaddr thread start
2014-07-01 05:54:36 dnsseed thread start
2014-07-01 05:54:36 net thread start
2014-07-01 05:54:36 addcon thread start
2014-07-01 05:54:36 upnp thread start
2014-07-01 05:54:36 Loading addresses from DNS seeds (could take a while)
2014-07-01 05:54:36 init message: Laden abgeschlossen
2014-07-01 05:54:37 Initialization result: 1
2014-07-01 05:54:38 receive version message: /Satoshi:0.9.1/: version 70002, blocks=308702, us=91.65.64.107:50585, them=216.240.154.131:8333, peer=216.240.154.131:8333
2014-07-01 05:54:38 Added time data, samples 2, offset -22 (+0 minutes)
2014-07-01 05:54:39 UPnP: ExternalIPAddress = 91.65.64.107
2014-07-01 05:54:39 AddLocal(91.65.64.107:8333,3)
2014-07-01 05:54:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 05:54:39 117 addresses found from DNS seeds
2014-07-01 05:54:39 dnsseed thread exit
2014-07-01 05:54:40 GetMyExternalIP() received [91.65.64.107] 91.65.64.107:0
2014-07-01 05:54:40 GetMyExternalIP() returned 91.65.64.107
2014-07-01 05:54:40 AddLocal(91.65.64.107:8333,4)
2014-07-01 05:54:40 ext-ip thread exit
2014-07-01 05:54:43 receive version message: /Satoshi:0.9.1/: version 70002, blocks=308702, us=91.65.64.107:50604, them=146.185.140.62:8333, peer=146.185.140.62:8333
2014-07-01 05:54:43 Added time data, samples 3, offset +1 (+0 minutes)
2014-07-01 05:54:44 receive version message: /Satoshi:0.8.5/: version 70001, blocks=308702, us=91.65.64.107:50605, them=97.77.34.35:8333, peer=97.77.34.35:8333
2014-07-01 05:54:44 Added time data, samples 4, offset -3 (+0 minutes)
2014-07-01 05:54:56 receive version message: /Satoshi:0.9.1/: version 70002, blocks=308702, us=91.65.64.107:50618, them=118.114.169.178:8333, peer=118.114.169.178:8333
2014-07-01 05:54:56 Added time data, samples 5, offset +1 (+0 minutes)
2014-07-01 05:54:56 nTimeOffset = +0 (+0 minutes)
2014-07-01 05:55:03 receive version message: /Satoshi:0.9.2.1/: version 70002, blocks=308702, us=91.65.64.107:50625, them=67.205.32.42:8333, peer=67.205.32.42:8333
2014-07-01 05:55:03 Added time data, samples 6, offset +34 (+0 minutes)
2014-07-01 05:55:04 receive version message: /Satoshi:0.8.1/: version 70001, blocks=308702, us=91.65.64.107:50628, them=173.79.162.98:8333, peer=173.79.162.98:8333
2014-07-01 05:55:04 Added time data, samples 7, offset -2 (+0 minutes)
2014-07-01 05:55:04 nTimeOffset = +0 (+0 minutes)
2014-07-01 05:55:13 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 05:55:13 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 05:55:26 receive version message: /Satoshi:0.9.1/: version 70002, blocks=308702, us=91.65.64.107:50651, them=159.253.96.225:8333, peer=159.253.96.225:8333
2014-07-01 05:55:26 Added time data, samples 8, offset +2 (+0 minutes)
2014-07-01 05:58:13 receive version message: /Satoshi:0.9.1/: version 70002, blocks=308702, us=91.65.64.107:50907, them=71.165.28.152:8333, peer=71.165.28.152:8333
2014-07-01 05:58:13 Added time data, samples 9, offset -1 (+0 minutes)
2014-07-01 05:58:13 nTimeOffset = +0 (+0 minutes)
2014-07-01 05:59:14 ProcessBlock: ORPHAN BLOCK 0, prev=000000000000000024926e897e23c310129dc76d705d298231303f86e0d23f4b
2014-07-01 06:09:12 ProcessBlock: ORPHAN BLOCK 1, prev=000000000000000009ace75c8238e4c9d53e677cc61be9788d9a94a04750cf2e
2014-07-01 06:14:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 06:14:52 ResendWalletTransactions()
2014-07-01 06:17:14 ProcessBlock: ORPHAN BLOCK 2, prev=0000000000000000178094cb0e1fc1fb88416c479b1de2fb9b1719ebc0650a73
2014-07-01 06:19:17 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 06:19:18 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 06:19:35 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 06:32:36 ProcessBlock: ORPHAN BLOCK 3, prev=000000000000000028ad722f0daf1d0d97903cab126481d43c56b8300e3146ac
2014-07-01 06:34:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 06:35:26 ProcessBlock: ORPHAN BLOCK 4, prev=00000000000000001d5c404ba9d4ef99afd73315e66e53ddc565488ae5d525d1
2014-07-01 06:38:33 ProcessBlock: ORPHAN BLOCK 5, prev=00000000000000003503bc2113b723ea68f1fba6aee1a3b6d8649b0008c471d7
2014-07-01 06:45:14 ProcessBlock: ORPHAN BLOCK 6, prev=00000000000000000d6a6b7344d3e28cb735bf3046aeaae8baff1ae2d547ecdf
2014-07-01 06:54:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 07:01:00 ProcessBlock: ORPHAN BLOCK 7, prev=00000000000000000f5a90f33af53eecc784d4a21ac9eed633587102f957ec7d
2014-07-01 07:04:12 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 07:14:21 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 07:14:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 07:16:06 ProcessBlock: ORPHAN BLOCK 8, prev=000000000000000029b6884600c679d0ecb19518abe4fa4ddb1444bd7108ab57
2014-07-01 07:22:38 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 07:22:39 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 07:29:53 ProcessBlock: ORPHAN BLOCK 9, prev=00000000000000003964274bf111e8b7421e41296229df7046f76d19d3fe1121
2014-07-01 07:34:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 07:36:53 ProcessBlock: ORPHAN BLOCK 10, prev=0000000000000000224f183c85736fbf758b6222a265a45cfb5bbf357ab0d7bb
2014-07-01 07:37:42 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 07:40:41 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 07:46:07 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 07:54:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 07:58:08 ProcessBlock: ORPHAN BLOCK 11, prev=00000000000000001162d57a27eba0fad1a74e23cf455ce7eec7787bbfa7ef65
2014-07-01 08:02:14 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:02:15 socket recv error An existing connection was forcibly closed by the remote host. (10054)
2014-07-01 08:02:15 receive version message: /Satoshi:0.9.1/: version 70002, blocks=308714, us=91.65.64.107:55648, them=82.164.213.27:8333, peer=82.164.213.27:8333
2014-07-01 08:02:15 Added time data, samples 10, offset +6 (+0 minutes)
2014-07-01 08:03:27 ProcessBlock: ORPHAN BLOCK 12, prev=00000000000000002f6a0dce4876ba9260d280436324880b68a833c7af8551fb
2014-07-01 08:08:10 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:08:17 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:12:51 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:12:51 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:14:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 08:34:12 ProcessBlock: ORPHAN BLOCK 13, prev=00000000000000002bce1f2290309bb7465473a1c830dcad8c110ac9d95ec036
2014-07-01 08:34:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 08:38:49 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:43:41 ProcessBlock: ORPHAN BLOCK 14, prev=000000000000000004667c43e6e07e9c5da2fec46b1bf4acfff2421b70487596
2014-07-01 08:48:58 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:51:28 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:54:39 AddPortMapping(8333, 8333, 192.168.178.25) failed with code 403 (UnknownError)
2014-07-01 08:56:21 ERROR: AcceptToMemoryPool : nonstandard transaction: dust
2014-07-01 08:56:21 ERROR: AcceptToMemoryPool : nonstandard transaction: dust