We experienced a temporary disconnection at our secondary data center in Mumbai. There was a drop in live market feeds. They are working with internet service provider to investigate the issue.
This issue was resolved at that time only. It won't cause API to throw invalid API error though. The behavior would be getting cached value(same value).
tried many times its throwing invalid api error.
In the Kite Connect version 3, there is a new quote call which will give you tick timestamp, you can use that.