suddenly I cannot get Yahoo! emails or access pages/links/etc. in Safari when connected to cellular (and some other apps) - only when connected to wifi (Gmail seems to work fine). I can do a Google search and get results but when I try to click through to the website/web page, I see "Safari cannot open the page because the server cannot be found". Yahoo! tells me they cannot find the server. HELP!!! this just started in the last week or so.
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