I've recently upgraded from a 512k adsl connection to a 16mb fibre optic connection.
Whereas I never had a problem previously, my rvs4000 slows to a crawl once or twice per week. The only solution seems to be to cycle the power since the admin interface freezes. I also have to cycle the power on my two wireless ap to get them back up.
I believe I have the latest firmware, is this a common problem on a faster connection?