Problems with wireless networking

[AHughes]

Hey all! Looking for some information with regards to wireless networking. Ive got a wireless router to which two laptops are connected and one desktop plus a printer, all connected wirelessly. Everytime I get a phone call on my landline, I lose connection on all pieces of kit. Whenever I run diagnostics, I get told that its a DNS error and/or a key ports problem. Any ideas on how I can fix or prevent this? Any ideas welcome

 

[AHughes]

The devices lose connection from the internet, there is still local connection.

 

[AHughes]

I have filters fitted and all are working correctly. It occasionally drops out now when just browsing the web. The ADSL stays connected, just the wireless goes.