Dear all,i have this error message with my router, %ERR-1-FATAL: Fatal error interrupt, reloading err_stat=0x0.i don't have any module in this router.pls can same one help my ?

Dear all,I have a problem with my internet speed when i use cisco router 2911, the speed is very low.when  use the ADSL router of my ISP ( the router is CNET), i don't have probleme.all test that i have do is without my lan juste 1 computer connected...