A lot of bloggers, resellers, Expert Elite forum users and Autodesk customers that are searching the web for answers, you may find this helpful. In this example, we are using a long URL to confirm that it will not re-direct to the new Autodesk Knowledge Network solution location.
1. If you put this long URL solution into Google:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=22947844&linkID=9242259

It references to Autodesk Maya 2014 Service Pack 4.

If you click on the link, it will re-direct you to the Maya Support (AKN) page. You can then search for the Service Pack in the Maya Support page.
2. As a workaround, you can also go to the Google cache of that page to get the download.

3. If you re-use a lot of solutions, you can re-create working re-directed solutions by getting the TS/DL number and putting it at the end of the url template below:
a. http://usa.autodesk.com/getdoc/id=
b. Get TS or DL # from the Google cache page.

4. If you use this short URL, it will get you to Maya 2014 SP4 correctly.
Technical Solution (TS) or Download Link (DL) short URL
http://usa.autodesk.com/getdoc/id=DL22947844
Autodesk Knowledge Network URL
http://knowledge.autodesk.com/support/maya/downloads/caas/downloads/content/autodesk-maya-2014-service-pack--4.html
Reference
http://upandready.typepad.com/up_and_ready/2014/02/autodesk-knowledge-network-2014-is-now-live.html
Epilogue
Here is another tip from the Autodesk Knowledge Network Team:
The "old" URLs contain an ID field "id=#####" as noted below:
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=16436702&linkID=9240617
That number is a unique identifier that can be added to one of the following URLs depending on the type of content:
Knowledge Base Article:
http://knowledge.autodesk.com/article/TS_____
http://knowledge.autodesk.com/article/GS_____
Download
http://knowledge.autodesk.com/article/DL_____
Using the example above, a corrected URL is:
http://knowledge.autodesk.com/article/TS16436702