Invalid HW cmd: 1

whats that mean?i do nothing!

the sample esp8266_hardser or esp8266softser or enc28j60 or arduino_ethernet are unstable,even connect success,maybe one minute or 30 seconds show disconnect…

the same message
UNO + ENC28J60

[0] Blynk v0.3.2-beta
[0] Using static IP
[1051] My IP:
[5002] Connecting to
[10707] Connecting to
[11590] Ready (ping: 170ms).
[11592] Invalid HW cmd: 1

the same message
mega+hardser esp-01

This might mean a hardware issue (transferring invalid bytes).

Android, iOS? What version?

Guys, we have duplicate threads for this.
Please follow here: