SmartThings and Google integrations stopped working

Recently (last couple weeks) SmartThings and Google home stopped controlling my Bond devices. Bond works fine individually, but SmartThings reports ‘Network of Server error’ and Google reports ‘offline’ or ‘not responding’. I have tried completely disconnecting the connection to Bond from both services, and re-registering. The ‘registration’ process works and it SmartThings / Google ‘shows’ the Bond devices. But any attempt to control the devices fails every time.