Let me offer my sincere sympathies to those whose lives are impacted by these floods. I hadn't heard anything about this until it was mentioned here.
The current situation with the flooding sounds like the perfect time to resolve the Z11 issues while everything is down. Shift them around, change the connectivity, move them to different locations, whatever you need to do to get them back up and running at full capacity when the issue is dealt with.
I hope that the Hashnest representative posting here and their family is safe from this disaster.