Okey, so I set up a repo on a client computer with files in a directory. All went fine without errors. Then I created the remote server in backup mode. Everything went well with the sync. Back at the office I now want the same repo content on this computer, so I fire up the assistant, add a local repo directory (empty of course) and then add a remote server. Then this happens

[2014-11-05 09:17:24 CET] main: Syncing with server__volume1_work_user_work
From ssh://git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work
 * [new branch]      git-annex  -> server__volume1_work_user_work/git-annex
 * [new branch]      master     -> server__volume1_work_user_work/master
 * [new branch]      synced/git-annex -> server__volume1_work_user_work/synced/git-annex
 * [new branch]      synced/master -> server__volume1_work_user_work/synced/master
(merging server__volume1_work_user_work/git-annex server__volume1_work_user_work/synced/git-annex into git-annex...)
(Recording state in git...)
fatal: ambiguous argument 'refs/heads/synced/master..refs/remotes/server__volume1_work_user_work/synced/master': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'

Automatic merge went well; stopped before committing as requested
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
   3943547..00aa6bd  git-annex -> synced/git-annex
 ! [rejected]        annex/direct/master -> synced/master (non-fast-forward)
error: failed to push some refs to 'ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/'
hint: Updates were rejected because a pushed branch tip is behind its remote
hint: counterpart. Check out this branch and integrate the remote changes
hint: (e.g. 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
[2014-11-05 09:20:09 CET] Pusher: Syncing with server__volume1_work_user_work
[2014-11-05 09:20:09 CET] Committer: Committing changes to git
(Recording state in git...)

SHA256E-s1570--7437c0b77825d2636723cde82f0094854357aec43619b7d62707b5c26c4b0379.c

              0   0%    0.00kB/s    0:00:00
          1,570 100%    1.50MB/s    0:00:00 (xfr#1, to-chk=0/1)
[2014-11-05 09:20:10 CET] Transferrer: Downloaded timing_ds20.c
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
   0e52256..2515592  annex/direct/master -> synced/master
error: Ref refs/heads/synced/master is at 2515592b1a0b2a355b5334c315d8857619b4a9c3 but expected 0e522560b9b6f0e52f789187e2fbd9076174bc4b
remote: error: failed to lock refs/heads/synced/master
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
 ! [remote rejected] annex/direct/master -> synced/master (failed to lock)
error: failed to push some refs to 'ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/'
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
 * [new branch]      git-annex -> refs/synced/a455ea74-d6fe-4f82-b796-72c20fc113fd/git-annex
 * [new branch]      annex/direct/master -> refs/synced/a455ea74-d6fe-4f82-b796-72c20fc113fd/annex/direct/master

SHA256E-s7--19d210b22987ea279fe707c89b3afdbe530537118d3bac62c722b6ec54901e5a

              0   0%    0.00kB/s    0:00:00
              7 100%    6.84kB/s    0:00:00 (xfr#1, to-chk=0/1)
[2014-11-05 09:20:13 CET] Transferrer: Downloaded somefile
[2014-11-05 09:20:13 CET] Pusher: Syncing with server__volume1_work_user_work
(Recording state in git...)

SHA256E-s7762408--27c11674fe8c0b23f469aa90342dd45bf9ec9c83108251985b3231178f0f4ed5.pdf

              0   0%    0.00kB/s    0:00:00
      5,406,720  69%    5.12MB/s    0:00:00
      7,762,408 100%    5.01MB/s    0:00:01 (xfr#1, to-chk=0/1)
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
   00aa6bd..841a157  git-annex -> synced/git-annex
[2014-11-05 09:20:16 CET] Transferrer: Downloaded anotherfile.pdf

SHA256E-s322841--452ddf060131e1cfe44a02ee23840494d4566c4b1ad58f0131d52f17fbf65ea2.pdf

And then it continues transfering the files. Then this happens

error: Ref refs/heads/synced/git-annex is at 4a802d679a5a7e2eae3c16b2ed0a8d724b665b0a but expected 45004c24db2eb24dddc04d1542d3689aa27b9507
remote: error: failed to lock refs/heads/synced/git-annex
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
 ! [remote rejected] git-annex -> synced/git-annex (failed to lock)
error: failed to push some refs to 'ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/'
[2014-11-05 10:13:48 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","push","server__volume1_work_user_work","master"]

SHA256E-s115543--4aca4053b23d914ea034f06439edcb7d3d9bcc24b5d9865f5e062394ca1263e0

              0   0%    0.00kB/s    0:00:00
        115,543 100%    2.98MB/s    0:00:00 (xfr#1, to-chk=0/1)
[2014-11-05 10:13:48 CET] feed: ssh ["-S",".git/annex/ssh/abf79f467a5dcf714ddaf5162ffc09ba","-o","ControlMaster=auto","-o","ControlPersist=yes","-T","username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork","git-annex-shell 'transferinfo' '/volume1/work_user/work/' 'SHA256E-s115543--4aca4053b23d914ea034f06439edcb7d3d9bcc24b5d9865f5e062394ca1263e0' --uuid 05bdd8d5-da30-4024-a921-0f8b1a2f33df '--' 'remoteuuid=a455ea74-d6fe-4f82-b796-72c20fc113fd' 'associatedfile=pathtosomefile' '--'"]
[2014-11-05 10:13:48 CET] NetWatcherFallback: trying manual pull to resolve failed pushes
[2014-11-05 10:13:48 CET] call: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","fetch","server__volume1_work_user_work"]
[2014-11-05 10:13:48 CET] Watcher: add symlink pathtosomefile
[2014-11-05 10:13:48 CET] Transferrer: Downloaded file
[2014-11-05 10:13:48 CET] TransferWatcher: transfer finishing: Transfer {transferDirection = Download, transferUUID = UUID "05bdd8d5-da30-4024-a921-0f8b1a2f33df", transferKey = Key {keyName = "4aca4053b23d914ea034f06439edcb7d3d9bcc24b5d9865f5e062394ca1263e0", keyBackendName = "SHA256E", keySize = Just 115543, keyMtime = Nothing, keyChunkSize = Nothing, keyChunkNum = Nothing}}
[2014-11-05 10:13:48 CET] Transferrer: Transferring: Download UUID "05bdd8d5-da30-4024-a921-0f8b1a2f33df" pathtosomefile2 Nothing
[2014-11-05 10:13:48 CET] TransferWatcher: transfer starting: Download UUID "05bdd8d5-da30-4024-a921-0f8b1a2f33df" SHA256E-s145572--50e4d0d2fa52fb6843258509637307b8efc87d31abab834e7bc3174296689e25 Nothing
[2014-11-05 10:13:48 CET] TransferWatcher: transfer starting: Download UUID "05bdd8d5-da30-4024-a921-0f8b1a2f33df" pathtosomefile2 Nothing
[2014-11-05 10:13:48 CET] read: rsync ["--progress","--inplace","--perms","-e","'ssh' '-S' '.git/annex/ssh/abf79f467a5dcf714ddaf5162ffc09ba' '-o' 'ControlMaster=auto' '-o' 'ControlPersist=yes' '-T' 'username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork' 'git-annex-shell ''sendkey'' ''/volume1/work_user/work/'' ''SHA256E-s145572--50e4d0d2fa52fb6843258509637307b8efc87d31abab834e7bc3174296689e25'' --uuid 05bdd8d5-da30-4024-a921-0f8b1a2f33df ''--'' ''remoteuuid=a455ea74-d6fe-4f82-b796-72c20fc113fd'' ''direct=1'' ''associatedfile=pathtosomefile2'' ''--'''","--","dummy:","/home/officeusername/work/.git/annex/tmp/SHA256E-s145572--50e4d0d2fa52fb6843258509637307b8efc87d31abab834e7bc3174296689e25"]
[2014-11-05 10:13:49 CET] Committer: committing 2 changes
[2014-11-05 10:13:49 CET] Committer: Committing changes to git
(Recording state in git...)
[2014-11-05 10:13:49 CET] feed: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","update-index","-z","--index-info"]
[2014-11-05 10:13:49 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","symbolic-ref","HEAD"]
[2014-11-05 10:13:49 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","show-ref","--hash","refs/heads/annex/direct/master"]
[2014-11-05 10:13:49 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","write-tree"]
[2014-11-05 10:13:49 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","rev-parse","2515592b1a0b2a355b5334c315d8857619b4a9c3:"]
[2014-11-05 10:13:49 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","symbolic-ref","HEAD"]
[2014-11-05 10:13:49 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","show-ref","refs/heads/annex/direct/master"]
[2014-11-05 10:13:49 CET] call: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","branch","-f","synced/master"]
[2014-11-05 10:13:49 CET] call: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","branch","-f","master"]
drop server__volume1_work_user_work pathtosomefile2
[2014-11-05 10:13:49 CET] call: ssh ["-S",".git/annex/ssh/abf79f467a5dcf714ddaf5162ffc09ba","-o","ControlMaster=auto","-o","ControlPersist=yes","-T","username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork","git-annex-shell 'dropkey' '/volume1/work_user/work/' '--quiet' '--force' 'SHA256E-s674028--398092ddec93e33310ca8be87b4d48b2c84a873b579b80002cad3738c1461266' --uuid 05bdd8d5-da30-4024-a921-0f8b1a2f33df"]

SHA256E-s145572--50e4d0d2fa52fb6843258509637307b8efc87d31abab834e7bc3174296689e25

Again it transfer some files...and then

error: Ref refs/heads/synced/git-annex is at ac6d09794a274e861db1ef00295e361e15d85ca3 but expected 4a802d679a5a7e2eae3c16b2ed0a8d724b665b0a
remote: error: failed to lock refs/heads/synced/git-annex
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
 ! [remote rejected] git-annex -> synced/git-annex (failed to lock)
error: failed to push some refs to 'ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/'
[2014-11-05 10:13:52 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","push","server.me__volume1_work_user_work","master"]

      8,454,144   2%    2.67MB/s    0:02:24  [2014-11-05 10:13:53 CET] NetWatcherFallback: fallback pushing to [Remote { name ="server__volume1_work_user_work" }]
[2014-11-05 10:13:53 CET] call: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","push","server.me__volume1_work_user_work","+git-annex:refs/synced/a455ea74-d6fe-4f82-b796-72c20fc113fd/git-annex","refs/heads/annex/direct/master:refs/synced/a455ea74-d6fe-4f82-b796-72c20fc113fd/annex/direct/master"]

     12,058,624   2%    2.86MB/s    0:02:13  To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
   00aa6bd..ac6d097  git-annex -> refs/synced/a455ea74-d6fe-4f82-b796-72c20fc113fd/git-annex

     16,875,520   4%    3.34MB/s    0:01:53  [2014-11-05 10:13:55 CET] Pusher: Syncing with server__volume1_work_user_work

Again

error: Ref refs/heads/synced/git-annex is at 383d9581c2722ab87647cf26f1ab8f25758866a4 but expected d158cddb1055adbe44973208d5562961acb0c42b
remote: error: failed to lock refs/heads/synced/git-annex
To ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/
 ! [remote rejected] git-annex -> synced/git-annex (failed to lock)
error: failed to push some refs to 'ssh://username@git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work/'
[2014-11-05 11:13:58 CET] read: git ["--git-dir=/home/officeusername/work/.git","--work-tree=/home/officeusername/work","-c","core.bare=false","push","server__volume1_work_user_work","master"]
ok
[2014-11-05 11:13:58 CET] dropped somefile (from UUID "05bdd8d5-da30-4024-a921-0f8b1a2f33df") (copies now 2) : file renamed
[2014-11-05 11:13:58 CET] TransferWatcher: transfer starting: Download UUID "05bdd8d5-da30-4024-a921-0f8b1a2f33df" someotherfile Nothing

Then some other stuff

error: Ref refs/remotes/server__volume1_work_user_work/synced/git-annex is at 2e867456306f9ac0dd61e29c221ea3968dc4cb70 but expected 086e08a168498b84a74065c1f71e114a9868867d
From ssh://git-annex-server-username_7000_.2Fvolume1.2Fwork_user.2Fwork/volume1/work_user/work
! 086e08a..2e86745  synced/git-annex -> server__volume1_work_user_work/synced/git-annex  (unable to update local ref)

And so on. When submitting this, the system is still transfering files (arrow pointing to the left, so that has to be from the server to the office computer I suppose). Checking the office computer file index by running

git ls-files | wl -l

yields the expected number of files. So, in addition to the errors above this seems a bit strange to me that it is still transferring files.

Thinking about the error messages above...is it so that the download and git repo updates work in parallel, so if git tries to update on a partly transferred files the checksum is wrong and then I get the errors above? If so, is the file transferred again later and is there a way to suppress the "failed to sync" in the webapp?

Another thing, then I add the remote server it automatically goes into transfer mode, even though I configured it to be a backup from home before coming into the office. Maybe it is not autodetected. Would it cause problem to later change it from transfer to backup mode?

Hope someone can point me in the right direction. And thanks in advance!