It doesn't update on the C1200 either. It's fairly useless currently, and I blame the new firmware they started using.

Memory load didnt refresh at all, even if i change the page view and come back to status page. It stay at 17% no matter what i do with the router...

It like i said in the first post... It show a single walue readed probably whe i first enter on status page and the remain still even if i begin to trasfer files trough the router or internet browsing. For example it shows 17% for memory everytime ( which is not true- memory load change) and 12% for example in that moment. But meantime when i start a big download, nothing change on the cpu measurement, but if i go to another menu and come back it show 98% for cpu. The value change only if i leave the status page and come back. These values must change dinamically like CPU and memory load changes continuously without change the menu pages in order to refresh. No performance problem, but what is the mean of this utility if we could not use it? If it is hard for you to manage to make it work, then remove that utility from firmware, because is useless...

@Kevin_Z  

Its been a half year, but i got same problem , so nothing changed ,its fatal usb 3.0 problem , if dont use that port everything seems working. Error error error.