Internet Connection Issue

[Mycopsycho]

My homebase is in Denver but I'm currently traveling in SE Alaska. I'm trying to use wifi for my internet connection but have encountered a problem connnecting to the internet. I have no problem getting a wifi connection both at the RV campground I'm staying at and at my son's home. Signal is strong with full bars. However, when I go to my browser and other internet connecting apps I get a "no connection" error message. I have tried everything I can think of to resolve this but I seem to be missing something. I've done a soft reset, battery pull, reviewed all the wifi-related switches, etc. The first time I tried the above-two wifi spots, I connected with no problem but then the next time and subsequent times no internet connection. Any help/advise here would be welcome.