Edit: It took about 1,5 hours to reindex. Later tonight or tomorrow i will open the wallet again to see if syncing is better now.
After reinsexing i opened the wallet again after 4 hours. It again synced with bumps and slowly.
debug.log shows again orphan blocks as it seems when syncing stops for awhile:
2015-12-10 17:49:08 UpdateTip: new best=b8bec1268232dfc2f1ef66397a6a187e4d8898a6f36429ff66264a64aa5bb222 height=1464770 log2_work=71.393492 tx=2981544 algo=1 date=2015-12-10 14:37:07 progress=0.999938
2015-12-10 17:49:08 ProcessBlock: ACCEPTED
2015-12-10 17:49:08 ProcessBlock: ORPHAN BLOCK 364, prev=00000000000006afbe9d170d0b0daa41d6b904d362cbddc6a6b43a73f713b820
2015-12-10 17:49:08 GetNextWorkRequired RETARGET
2015-12-10 17:49:08 Algo: scrypt
2015-12-10 17:49:08 Height (Before): 1464770
2015-12-10 17:49:08 nActualTimespan = 715 before bounds
2015-12-10 17:49:08 nAveragingTargetTimespanV4 = 750; nActualTimespan = 715
2015-12-10 17:49:08 Before: 1c053f50 00000000053f5000000000000000000000000000000000000000000000000000
2015-12-10 17:49:08 After: 1c0446ae 000000000446aeea30dc9db19e826d7418645d5f965a58036b01ab8f5c8ec766
2015-12-10 17:49:08 UpdateTip: new best=545f8f8ba67e38b9e74f893177647ac7e1bc2b3a7d3b3a2f6abcd5ffdef26749 height=1464771 log2_work=71.393492 tx=2981545 algo=1 date=2015-12-10 14:37:13 progress=0.999938
2015-12-10 17:49:08 ProcessBlock: ACCEPTED
2015-12-10 17:49:08 ProcessBlock: ORPHAN BLOCK 365, prev=f73fa433abdb445f24bdece418f603db29057008947ddad7943cecef6224221a
2015-12-10 17:49:08 GetNextWorkRequired RETARGET
2015-12-10 17:49:08 Algo: qubit
2015-12-10 17:49:08 Height (Before): 1464771
2015-12-10 17:49:08 nActualTimespan = 714 before bounds
2015-12-10 17:49:08 nAveragingTargetTimespanV4 = 750; nActualTimespan = 714
2015-12-10 17:49:08 Before: 1c03f7e3 0000000003f7e300000000000000000000000000000000000000000000000000
2015-12-10 17:49:08 After: 1c03a1ed 0000000003a1ed54ad4ad4ad4ad4ad4ad4ad4ad4ad4ad4ad4ad4ad4ad4ad4ad3
2015-12-10 17:49:08 UpdateTip: new best=0b5d15e00fab3ebfd4c4b877bda2295aa65b39daa1567d4ea5382b3e8450eab2 height=1464772 log2_work=71.393493 tx=2981547 algo=4 date=2015-12-10 14:37:18 progress=0.999938
2015-12-10 17:49:08 ProcessBlock: ACCEPTED
2015-12-10 17:49:08 ProcessBlock: ORPHAN BLOCK 366, prev=bc4be224aca17caf92e07a964376acfddb43f508d8698dfb73c5667690e60db0
2015-12-10 17:49:08 GetNextWorkRequired RETARGET
2015-12-10 17:49:08 Algo: skein
2015-12-10 17:49:08 Height (Before): 1464772
2015-12-10 17:49:08 nActualTimespan = 714 before bounds
2015-12-10 17:49:08 nAveragingTargetTimespanV4 = 750; nActualTimespan = 714
2015-12-10 17:49:08 Before: 1b42b20f 000000000042b20f000000000000000000000000000000000000000000000000
2015-12-10 17:49:08 After: 1b476c1b 0000000000476c1b2c150f64549bec37d4b62dd78743894a49add1928ce88ed1
2015-12-10 17:49:09 UpdateTip: new best=26f52c61ba1e70bcac397d740bc45a6f7d18516f2a0f8160380f2a5a8944f297 height=1464773 log2_work=71.393493 tx=2981548 algo=3 date=2015-12-10 14:37:52 progress=0.999938
2015-12-10 17:49:09 ProcessBlock: ACCEPTED
2015-12-10 17:49:09 ProcessBlock: ORPHAN BLOCK 367, prev=4d1bd39babd8ff2ff18f4e734e1e1f07d8dbad31bcad9919c7bcd64e435e15fb
2015-12-10 17:49:09 GetNextWorkRequired RETARGET
2015-12-10 17:49:09 Algo: skein
2015-12-10 17:49:09 Height (Before): 1464773
2015-12-10 17:49:09 nActualTimespan = 695 before bounds
2015-12-10 17:49:09 nAveragingTargetTimespanV4 = 750; nActualTimespan = 695
2015-12-10 17:49:09 Before: 1b476c1b 0000000000476c1b000000000000000000000000000000000000000000000000
2015-12-10 17:49:09 After: 1b38932d 000000000038932ddab496057195e79d2a3ce88e1904fc8fa3b0b475e59b2cd4
------------------------------------------------------------------------------------------------------------------------------------
After the wallet is synced fully, the debug.log looks normal at the end and the next blocks are seen immediately by the wallet:
2015-12-10 18:00:49 UpdateTip: new best=a01d15e352afca3b7fb667ba896d7861a4edb3644bd5476148317db8ce381b9d height=1465570 log2_work=71.393723 tx=2982699 algo=3 date=2015-12-10 18:00:46 progress=1.000000
2015-12-10 18:00:49 ProcessBlock: ACCEPTED
2015-12-10 18:00:49 GetNextWorkRequired RETARGET
2015-12-10 18:00:49 Algo: scrypt
2015-12-10 18:00:49 Height (Before): 1465570
2015-12-10 18:00:49 nActualTimespan = 788 before bounds
2015-12-10 18:00:49 nAveragingTargetTimespanV4 = 750; nActualTimespan = 788
2015-12-10 18:00:49 Before: 1c03aa66 0000000003aa6600000000000000000000000000000000000000000000000000
2015-12-10 18:00:49 After: 1c03b405 0000000003b405e5be5be5be5be5be5be5be5be5be5be5be5be5be5be5be5be5
2015-12-10 18:00:49 UpdateTip: new best=a9f219d992fc341e976ce89085a61e07020528356f235b1b69bf91dbac84249e height=1465571 log2_work=71.393724 tx=2982704 algo=1 date=2015-12-10 18:00:23 progress=1.000000
2015-12-10 18:00:49 ProcessBlock: ACCEPTED
2015-12-10 18:00:50 No valid UPnP IGDs found
2015-12-10 18:00:50 upnp thread exit