Not sure why this quit working. This has never been an issue. When I try to watch tablo on roku is says “unable to find tablo. please make sure your tablo is on the same lan as your roku.” I can still access tablo through my pc, just not roku. Yes I have the latest updates. Yes it is listed on my router as part of the network. No I have not made any changes to my router.
I found the answer right after I posted. Deleted channel from my roku and added the new version back from the tablo website.
Yep you must have had the old Tablo channel that was not getting automatic updates.