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Can't access website on Firefox, but can from other browsers at the same time, same computer

SuMo Bot replied
Andy Wachs

I get this message when trying to access this site: "We can’t connect to the server at www2.optumrx.com"

I can then go to another browser, like Edge and I have no problem accessing the site. I am using a Windows 11 Lenovo computer running Firefox 120. This problem just started to occur.

I get this message when trying to access this site: "We can’t connect to the server at www2.optumrx.com" I can then go to another browser, like Edge and I have no problem accessing the site. I am using a Windows 11 Lenovo computer running Firefox 120. This problem just started to occur.
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選擇的解決方法

i had a wee bit of a dns issue because security is set high, but after allowing the site it worked. see screeenshot Who are you using for DNS and check the browser DNS settings?