错误代码102是IP和DNS问题造成的。通过以下方法可以解决：在电脑桌面点击“菜单”，在弹框点击“运行”，输入CMD按“确定”，输入ipconfig/flushdns命令，进行IP配置和DNS刷新，鼠标右键点击steam，弹出来的选项点击“打开文件位置”，找到“steam.dll”点击后再点击删除，然后使用就不会出现错误代码102问题了。
1、电脑桌面，点击“菜单”按钮。
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2、弹出来选项卡，点击“运行”。
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3、在运行窗口，输入CMD按“确定”按钮。
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4、输入ipconfig/flushdns命令，进行IP配置和DNS刷新。
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5、鼠标右键点击steam，弹出来的选项点击“打开文件位置”选项。
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6、找到“steam.dll”，鼠标右键点击一下。
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7、弹出来的选项，点击“删除”，然后使用steam就不会出现错误代码102问题了。
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注意事项
错误代码102除了上述解决方法还有其他可能，可以检查网址和互联网连接、检查恶意软件、清除Cookie、确保您的防病毒软件和防火墙设置不会阻止Chrome浏览器等。各种程序的操作方式不同。
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