Cisco 850 series ADSL2+ config… Posted byFarzand AliOctober 22, 2013March 9, 2014Posted inCCNA / CCNP RnS http://www.dslreports.com/faq/13832 https://supportforums.cisco.com/thread/2135154 http://community.o2.co.uk/t5/Home-Broadband-Home-Phone/Cisco-857-slow-ADSL2-speed/td-p/184895 Share this:TwitterFacebookLike this:Like Loading...