Almost always your circuit, not the market.
An Osiris node that will not connect is almost never the market being gone. It is usually your Tor circuit or a temporary flood.
Use the Tor Browser menu to request a new circuit or a new identity, then retry. A bad guard or a congested path is the most common cause and a fresh circuit fixes it.
Move to another node in the pool. All resolve to the same market. If one stalls, another usually opens. If all three stall across circuits for several minutes, check the status log for a wider event.
