Both my wife & I have a Galaxy S10e. Recently (within the last 2 days) we experienced the exact same problems with our phones. Both Fox News & Wkrn Weather apps no longer work on wifi, but work fine when wifi is off. I thought it must be my router, but I powered up an old S4 & a S6 I had in a drawer and those programs work fine. I have cleared cach, uninstalled & reinstalled the programs. Still no help. Any ideas?