i think I got a faulty Roam

Fair enough mate, hope you get it sorted ASAP :)

After charging it for about 10 hours mine suddenly started working again. 

Was there ever a solid solution to this problem? Set up mine 24hrs ago. Worked great last night and the same exact thing happened that everyone has listed. I’m about to return and never buy from Sonos again. They are two expensive to be this faulty. My Play 1 is unable to connect to WiFi about once a month and I have to reset it every time, I made the mistake of thinking that it must be a one off thing. 

A 5v/3Amp power-output charger that we use here will charge the Roam fully in 2-¼ hours from an almost empty state, if that helps at all.

No point using the ‘usual’ 5v/1A phone chargers, as you’ll probably be waiting ‘days’ for it to charge.

Had exactly the same problem, it was the charger as described above by Ken_Griffiths

Not quite sure what you are saying here, was it a case that the charger caused the problem with your Roam? If so, perhaps post an image showing it’s spec.

Same like issue. Update then my roam disappeared.  Won't connect and can't be found no matter what I do.  Reset modem. Reset Sonos. Logged in and out secret times. Solid red light

Try holding rear power button for 20+ seconds until the top status LED shows and place on a charger that has a minimum power output of 5v/2A and leave for an hour, then power it on/or repeat the above procedure and see if that brings it back to life.

It won't charge either. And when I get it to turn off it just turns itself on... White flasing for about 45 min.  Then solid red light.    I'll verify the charger I was trying in addition to the wireless Sonos I bought with it

1) I have the same problem, red led light at the bottom flashing for more than 6 day  unable to reset or power off or able to play . Contacted support by email and they promised to call tomorrow. 2) Since buying this item 2 months ago already seen faults like poor Charing , takes over a day to charge full using  Sonos roam  cable and ac ac wall socket plus also using Sonos roam wireless charger takes longer . No fixed to-date. 3) developed fault after a while music should goes up and down . 4) intermittently lock freezes and cant rest or power down . 

4. when fully charged and then not used after 2 day it shows no power ie it cannot hold charge even after 2 day , I was told by Sonos tech support iris because it is designed to by Sonos to constant monitoring and Chevy with the router vm even when fully powered off , hence this takes power / bad design we are loosing power on my expense 

this product is badly designed and unreliable . I have been using other excellent potable  blue tooth speakers over 4 years , JBL flip , Marshal and Bose , have not had any problems with them and all of the still hold full charge even when not in use for S3Hs month and ready to go power os available which is not there on the roam , it runs out of juice : peer after 2 day even when not used