If you appear to have lost coins when updating try (this is due to staking orphans)

Try:

./slimcoind checkwallet

This should print the amount of coins to be salvaged

Then: ./slimcoind repairwallet

That will salvage the coins.

15133 is not the right fork, it's an instamined one.
Currently we're at 15060 (Slimcoinpool, primer's network), I suggest picking one of primer's nodes and syncing to it with "connect=", but delete all blk* first.

can't -> can't sync ^^ neither with one of the nodes with 'connect' nor somehow else

Our blockchain got accepted by slm.blockquarry :
Next Network Block   15,068    (Current: 15,067)
Last Block Found   15,123

Nothing wrong. everything going as planned, all my nodes are synced up.
That slm.blockquarry pool looks bugged, just look at how little blocks they found with that much hashing power.

got disconnected after 3500 blocks:

strange...it now shows 0 connections but still gets blocks. 15112 is shown as max.

Me too. Stucks at 15112 and 1 connection.

Btw slimcoinpool.com again:

2014-6-14 23:07:54 UTC   15134   31.0490%   9.87978901   immature
2014-6-14 23:06:01 UTC   15158   25.8635%   7.94527153   immature

found block 15158 and then back 15134 again ? Two times already.

slim blockquarry pool show 15165. We're in different fork again ??

wait..