It isn't actually on the server it is part of the network fabric - the server itself will know nothing about it.
However, if your company has security requirements then you could be going against your AUP by connecting a wireless router (and indeed connecting your own personal devices to it).
There are tools available to IT pros to detect rogue access points. Whether your company uses them will depend on the size of the company and the security profile.
EDIT : If you are concerned about getting caught then you almost certainly work in an environment where you should not be doing this. I take no responsibility if you follow the advice I gave in good faith and get into trouble with your employer for doing so (my own company would consider it a disciplinary and could even be cause for dismissal).
Edited by ian72 (Thu 07-Nov-13 13:21:39)