Hi @tLea,
I’ve given our latest update on this issue here:
While the behavior has been improved (you can retry instead of log in), we aren’t able to completely resolve issues that are stemming from environmental slowness.
As we note in our Networking Guide, we recommend against Apple networking products. It’s hard to say if that is the exact cause of the issue here, but it’s definitely a possibility. It’s also possible that the switch, particularly if it is managed, is playing into things as well. I’d recommend starting with adjusting your network configuration and let us know if there is any change!