ASIC Blades on Mining_proxy.exe Hashing Speed Question

[jackbnimble]

My Setup on Slushs Pool: 42 ASIC block erupters on two Raspberry Pi's with cgminer hashing at around 15GH solid (on one worker) and I have 4 erupter blades with Win7 mining proxy.exe that each mine at around 10GH all day (each on it's own worker), but then, at around 5 P.M. pacific in the afternoon, the hashing speed of all the blades drops to nearly zero and sometimes completely to zero. The block erupters are not affected and maintain their 15GH speed. The blades appear to return to the 10GH speed the next day although I'm looking at them now (9:00 AM) and they are still in the 20-30 MH range. The blades are mounted in a back plane with a 1kw power supply and are adequately cooled.  In the mining proxy.exe command window the blades are asking for new work. It just looks like they aren't getting any. Speedtest.net shows a solid 7Mb during this entire time so it's not fluctuating network speed. I've rebooted my router, rebooted the PC and reset the blades. Still no love. This hashing fluctuation has been happening since I set the system up two weeks ago. I've scanned the PC with Malwarebytes and found nothing. Can someone enlighten me please? Thank you very much.

[vm1990]

the only thing iv seen happen like this before is where the same ip address is using 2 stratum proxys... im not sure from reading you description if your using 1 or more proxy softwares. id recommend shoving all hardware through 1 stratum proxy

[jackbnimble]

Yeah, the blades are all pointed to the same stratum proxy on my PC. Thank you for the thought though.