I got a strange problem, my Saturn hashes all day at 343 gh/s. Every night at 4:11 AM it stops hashing. It does come back but not at full speed, in the morning I restart CGMiner and then it goes back at 343 Gh/s.
I mine at BTCGuild, but tried Eligius, but is also happend there.
I suspect that my ISP maybe is resetting the internet connection, but I cannot explain, why the Saturn isn't coming back at full speed.
Look at charts-attachment.
(The last downtime after 15 december is when I switched to other pool)
I also got a PC in my LAN with an Online backup, but this runs at 23:00, I was thinking that it maybe uses all the bandwith for upload, I set it at 4:00 AM to test if the down-spike hops to another time. (results yet to come)
http://forum.kncminer.com/filedata/fetch?photoid=24891