Issues with link.springer.com.proxy2.cl.msu.co access could stem from improper redirect settings between different versions of the site. Check the following links for alternative routes:

http://link.springer.com.proxy2.cl.msu.co https://link.springer.com.proxy2.cl.msu.co

Or return to the current status page of link.springer.com.proxy2.cl.msu.co.