Site cos is now available!

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We check this website, now cos.edu is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is cos Down Right Now?
- NO! cos is up!
If you have problem with access to site cos, and domain cos.edu is not avalible.

• Clear browser cache and/or try other web browser (Chrome, Firefox or Safari).
• Clear browser cache and/or try other web browser (Chrome, Firefox or Safari). Clearing Your DNS Cache (How to Clear Your DNS Cache and how to flush DNS)
• Check your PC for viruses (see top10 antivirus software here)
• Check your network setting, and contact your ISP support if its needed.

Also, check your hosts file (wikipedia about hosts file) for some records about domain cos.edu. And try to remove it.

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