I live in SPain where the biggest ISP called Telefonica does what it likes and drives IT poeple nuts.
Our company uses Cisco equipment as a standard. Telefonica comes and installs their cheapo routers and when they leave we yank them out and replace them with Cisco equipment.
We had a 8mb ADSL line working fine on a 1841 router with the ADSL WIC. Telefonica, without telling us did a upgrade to 2+ and now I have LINE PROTOCOL DOWN on my router.
This is the best part. My rep at Telefonica cant tell me what 2+ is or what encapuslation it uses or what kind of WIC we need to get. She is investigating as a favor because according to her Telefonica washes thier hands of everything when we stop using the cheapo routers.