sha 256 or sha 256 boost
All of the S17 pro firmware versions are asicboost.
what firmware if any
All the stock versions are pretty the same, the latest one has tighter security which can go against your desire when you want to change the firmware so it's not recommended.
how to determine what version i have
In the miner status page, pay attention to the date.
to flash or not flash
If it's working no need to flash.
I really would appreciate some help. My miner will not connect to my network. I order another modem/router that will be here tomorrow, its a netgear 3.1 Surfboard My current is a netgear C3700 3.0 Docsis. But this router seems fine for everything else. I have tested my ethernet cable it is also fine. On occasion my miner will be found on my router interface under "allowed but not connected". But most time it does not register at all.
It's very unlikely that your router is causing this issue, it could be some IP conflict going on, it would be best to set a static IP for the miner which is outside of the router DHCP range, if you don't know how to do that just watch a few videos on youtubeظ