Dell PowerEdge T300 Server  "corporate cell phones" Questions

...cell phone but the work computer connected to the server will not allow me to connect to the same website. Is some sort of issue with the server settings? This is only happening with that particular ...

...cell phone but the office computer comes up with SERVER NOT FOUND so I suspect it has something to do with the poweredge t300 server settings we have. So my question what can I do to fix this issue? ...