I don't mean to sound rude or anything, but your dsl modem will come with instructions from the broadband place you get your service from. I suggest you read the instructions, then re-read the instructions, and then re-re-read the instructions.
Microfilters go between Phone and Phone Plug in wall. Computer goes to either DSL Modem or Router/Switch. If more than one Computer in room... Still goes to Router/Switch. Look back at illustration I posted.
Microfilters are only for Phone and/or Answering Machines to avoid problems with data transfer.
DO NOT put Microfilter on the line that goes to DSL Modem or Computer or Router/Switch.
Lets put the record straight in uk it is not ADSL or IDSL if you are with NTL or TELEWEST it is broadband through your tv-coax cable not a phone line and TELEWSEST were £25 for 512k which had 64k downloads now i upograded to 1024k(meg)for £35 and get 128k downloads.
Yes sometime i got crazy higher speeds than normal speed with both 512k and 1024k.
Remember your max download is always your actual modem speed divided by 8 as in 56k can get 7k download if v92 modem on a good day 512 can do 64k and 1024k can do 128k.