Anyone else having problems updating firmware?

I think it may be you (and possibly a small number of others). I’ve not had this experience in my system, using iOS across three different products, and twenty plus speakers.
 

Have you looked up error 30 in the FAQ database?

Yes, thanks - I’m aware of the error description. I have a theory that there’s an issue with Sonos’ update server but that would affect more people than myself, hence the question. 

I’ve put a packet sniffer on the update traffic and I can see that my speaker is making an HTTP GET request to http://update-firmware.sonos.com/firmware/Prod/82.3-60160-v16.5.1-BMh6lQokUO-GA-1/82.3-60160-1-21.upd

The server breaks the connection, resulting in the error. If I point my browser at the same URL I get a ‘server broke the connection’ error.

However, if I point my browser to https://update-firmware.sonos.com/GET /firmware/Prod/82.3-60160-v16.5.1-BMh6lQokUO-GA-1/82.3-60160-1-21.upd my browser happily downloads the update package.

So it seems to me that the server should be configured to redirect HTTP requests to HTTPS but isn’t. If my theory’s correct though, this should be affecting other people. 

I’m in the UK, so they’re asleep now - will call them tomorrow. The IP address that update-firmware.sonos.com resolved to for me is an Akamai address so it’s possible it’s a localised problem.

Thanks for your reply.