Device is still Offline

[PeteKnight]

Are you using Blynk Legacy or Blynk IoT?

If Blynk IoT then read this…

[Solved] Arduino Uno USB Serial - Device Offline in Blynk 2.0

Your script is trying to connect to blynk-cloud.com, which is the Legacy server. You could try editIng the script and changing the server to blynk.cloud and maybe port 8080 but not sure if USB connection is supported in Blynk IoT. Normally the Template ID is required and I don’t think the script has been updated to accommodate this. Pete.

@udit.mahato

Does blynk provide support?

Yes, if you subscribe to a Pro or White Label plan. Otherwise support is via this forum.

Pete.