can only stream first track

[buginblue]

It turned out to be a firewall problem. I am using ZoneAlarm. When the wi-fi hardware was changed, a new zone was created that defaulted to "public". This "prevents you from sharing resources with other computers on that network and protects you from the security risks associated with resource sharing". When I changed the setting to "Trusted" everything was fine again. Many thanks to those who gave advice - it was a great help.