Network Connection Problems

Assume you own a cabled network device and you are not able to establish any connection via one of the UTP wall sockets,
did you consider the following:

1. Has the UTP socket already been patched?

   • To check this, send a mail to: support@ee.ethz.ch

2. Has my device already been registered on the DHCP server?

   • If not, send a mail to: support@ee.ethz.ch

3. Is the network cable I'm using physically ok, resp. could it be, that it is not working?
   • Ask the hardware responsible of your Institute for a alternative cable.
4. Did I deactivate WLAN of my device?
   • If not, do so, because WLAN activated in parallel to cabled networking can cause problems.
5. Did I deactivate 802.1x authentication of my device?
   • If not, do so, because if 802.1x is activated, the registered MAC adress will be ignored, as a consequence you won't be able to get into the correct network.
6. Has a dumb switch been connected between my device and the UTP socket?
   • If yes, pull the dumb switch' power cable for approx. 20 seconds to empty it's port cache. After that, try again.