Hi all,
i m connected to internet thru ISA Server 2000 (which is placed at the administrators premises he is also the owner of the Internet Service Providing company). Couple of hours ago i was experiencing disconnectivity from the internet (when i tryped the url in address bar and hit enter the status bar showed that waiting for http://blahblah and nothing happened then). My ISA Server client was constantly showing that it is unable to connect to the SERVER. i tried to ping the SERVER the response was in 1000ms and some time there was a timeout. I visited the administrator and saw that ISA server was up and all other people were connected except me. I trouble shoot my system and nothing happened as i was not having any success. After that i changed my mac address and my Internet started working. Now my question is 'is there any method that ISA server administrator blocks me in a manner that i sometimes ping him or sometimes website loads and sometimes not).

Thanks