Hii, could you share a bit more documentation as to what the actual purpose and effect of the setTimeout function is? The comment "Configure WiFi join timeout in milliseconds. Default value is 7s" isn't self explanatory, and I am confused as about what effect this timeout value will have on an connection. What does "WiFi join" mean?

WiFi.begin() is a blocking API, when you call it, the wifi driver tries to join (connect) to the configured wifi network. If for some reason the WiFi chip can't join the network; the wifi driver was configured to do a number of retries each of that would block execution up to 7s.

With this patch we have reduced the number of internal retries to 1.

For some applications you may want to reduce the join timeout even more, and this is possible using WiFi.setTimeout()