On Blynk i can not connect to my own router with esp-01 or NodeMCU.If i change the ssid and password and upĺoad,blynk do connect to that network.I have tried different networks they all connect except my router.It did connect once for a short while.
Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advice on) your project 
See About the IDE 1.x category.
I'm not familiar with your boards nor with Blynk. What are the errors that you get when attempting to connect? Use Serial monitor and if needed sprinkle (more) Serial print statements through your code for debugging.
I suggest that you
- Post your code using code tags as described in How to get the best out of this forum.
- Use a very basic sketch to check if you can connect; leave anything that is not relevant to conneting to the network out.
What are the differences between those networks? Are they all using the same routers? Which router do you use? Which ones are in te working setups? Any chance that you have firewall rules in your router that block connections; e.g. in my home setup I block all WiFi connections from unknown MAC addresses.
That's bad.
Who or what is Blynk?
Is it possible without it?
Did you hardcode the IP and MAC adresses?
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