Nodemcu v3 not responding (http)

[sh4rkyq]

Hello,
My nodemcu v3 12E CP2102 installs correctly, opens up the choice of wifi network, saves the data correctly.
The device appears on the router.
However, after entering the new IP nodemcu does not respond.
Typing static data also does not help. As if the http server is missing.

Several versions from November and October have been tried.
e.g. Release mega-20181129

[sh4rkyq]

Problem solved.
I had a wifi network setting of 40 mhz.
The change to 20 mhz has helped.