3.2.2 Rollback

I had been very happy with a recent 5n purchase with 3x3TB Red drives and a accelerator card. I believe my 5n came originally with 3.1.0 firmware but not sure.

Then after I “upgraded” to 3.2.2 I began to have the problem of lost connections as noticed on the macs on my network. Seeing as there is no fix for this yet and no upgrade in sight, my question is can I roll back to a more stable release, like 3.2.0?

Where can I download old releases?
Any caveats before rolling back to 3.2.0?

THanks in advance,