可能是舊版skype無法通過密碼驗證的原因: Update IE8 to TLS1.2 for (nearly) Last Skype 7.36.0.150 on Windows XP One elsewhere-posted answer with no fix, helpfully explained that Skype had switched to using the more secure https encryption protocol TLS1.2. Skype for WinXP uses the SSL/TLS protocols built into Internet Explorer 8, which is the last Internet Explorer version for WinXP. IE8 normally has a maximum version of TLS1.0.
因為加密方法已經改成 TLS1.2,所以XP使用者無法通過舊版的加密程序登入skype。 不過因為Microsoft還有支援另一個XP POSready 2009版本(不幸的也在2019/4/9關門),這個版本有提供TLS更新。 你可以依照文中的指示說明去手動更新你的XP TLS版本試看看,這樣skype 7.36應該就可以順利登入系統: INSTRUCTIONS TO ADD TLS1.2 TO IE8 for Windows XP Skype 7.36.0.150