slow torrents after resume from pause or network failure

[lman]

Hi,

I'm having a strange problem. If I pause all my torrents and then resume it, it's like no real new connections are created, and download/upload speed is slow (waited ~5minutes no effect, tried to update tracker, still no effect). If I restart the daemon suddenly everything is fine.
This also happens after a network disconnect-reconnect.
Is anyone experiencing this?

versions:
-deluge 1.2.3
-libtorrent-rasterbar: 0.15.0
-archlinux