viru409 on ThingSpeak Communication Library for Arduino

 I am trying to read A0 data from Ethernet with UNO using sample code provided by you. I wrote the correct API and Channel ID but at terminal I m getting the following and unable to connect to thingspeak:

Connecting Arduino to network...

Arduino connected to network using DHCP

Connection to ThingSpeak failed (1)

Connection to ThingSpeak failed (2)

Connection to ThingSpeak failed (3)

How can I solve this issue

thanks