What can cause my internet conection when......?..?

Someone picks up and answers the house phone. I cant get a stable connection while someone is using the phone. What can be the cause of this.What can cause my internet conection when......?..?
2 reasons for this



1- Every socket used at the house, even for ADSL must have it's own ADSL filter installed ( including the alarm or Satellite phone connections), No more than 4 handset filters should be used.



2- You line has too much noise on it, that when the phone is picked up, the line drops to a very poor quality hence losing your ADSL link.



Check the Sync light on the router, does it go off when you pick up the line or when you lose the ADSL link? That shows that the line is being effected, if not, try another router.What can cause my internet conection when......?..?
Sounds like your wireless phone is interfering. Change the channel on the router.What can cause my internet conection when......?..?
well there are a few questions to be asked here.

Are they cordless phones ? are you using wi-fi at your home?

If yes to the both of these, this could be causing the issue. Cordless phones could cause issues with your wireless network if they are in the same levels of frequency, usually 2.4Ghz.

I would suggest purchasing new cordless phones that are on a different frequency.
Some phone is missing a DSL filter, or there is a cordless phone system close to the router, flooding it's signal.