I have a 2620xm with a wic-1adsl, but when I download something, it's "limited" at 300KB/s...
If I use this wic-1adsl with a Cisco 1720, the same file download at 800KB/s.
The IOS on 2620xm is 12.4(16) ADVANCED ENTERPRISE SERVICE, it has 256MB of RAM and 32MB of flash.
the firmware of the wic-1adsl is 3.8131.
I have noticed an abnormal cpu utilization of 42% when i download.
If I modify my network topology in this way:
1720+wic-1adsl <---- 2620xm <---- PC
I downlaod from internet at 800KB/s but the 2620xm cpu utilization is 86%.