I did buy it used so anything is possible there

I am using BFGMiner to solo mine, I don't want to pool necessarily, I like the lotto aspect of mining, don't even care if I ever mine a block. Trying to learn more about the mining process, low level

When I use my S9 on CKPool or F2Pool it works just fine.

When I direct my S9 to my stratum proxy BFGMiner it works fine with the exception that it reboots every 15min

I've watched the kernel log right up to reboot nothing reallly stands out there

The one thing that does stand out:

GH/S(RT)        GH/S(avg)
8,522.037       32,435.59       These numbers were taken with chain 8 disconnected to see if it was causing any issues. But the difference of about 4x between RT and avg remains the same with chain 8 online.

This exaggerated GH/S(avg) is the only thing I see different between pool mining and solo mining

Has anyone seen this issue and have any recommendations? Stratum proxy settings need tweaking?

thanks