Hello and welcome to the Blynk Forum
Your issue is common and there are many ways around it…
Look into alternate connection management methods… i.e. Blynk.config() instead of Blynk.begin()
http://docs.blynk.cc/#blynk-firmware-configuration
http://docs.blynk.cc/#blynk-firmware-connection-management
And do some research on the forum about similar questions…
