starjax suggested changing the wireless channel that the router is using
because the monitor is somehow involved also try putting the Snap Choke Core on the computer to monitor cable
can you borrow/buy a Wireless G USB Adapter
and try connecting to the router using it instead of the wired connection...
This list is not exhaustive but common culprits could be:
• A current imbalance between two power carrying conductors (Earth leakage fault).
• Faulty thermostats (Central heating, Immersion heaters).
• Electrical power supply units (Laptops, Routers, Plasma TVs).
• Industrial/Commercial power usage (Electric Railways, Electric fences, Electric motors).
• Decorative electrical items (Christmas tree lights, Touch lights).
• Security systems (PIR lights switching on and off).
• Digital Communication Receivers (Satellite and Freeview set top boxes).
• Internal power and telecoms cables run close together at the End User.
Strong signals from nearby amateur radio, CB, FM and other transmitters are picked up by long wires running through the house: electric power wiring, telephone cables. alarm system wires
try to track down the source of REIN..( repetitive electrical impulse noise )
If you suspect there is something interfering with your broadband, get an AM/MW radio and tune it to 612Khz. If you hold the radio next to an LCD screen for your pc as an example you would hear a distinct noise. This should fade away if you move the radio a quarter to half a meter away. Hold it by your modem/router and you'll hear the DSL signal.
If you get a distinct noise enveloping a larger area, then this may be picked up by your router causing an SNR problem (or even drop of sync). By using the radio you may be able to get an idea of where the noise is coming from. Switch the suspect appliance off & retest your DSL connection. By distinct noise you're looking for a clear buzz, whistle, clicking etc. White noise or a general shhhhh noise is less likely to be the cause of the problem, same as any radio broadcast.
Be aware that any noise heard on the radio is not always affecting your DSL connection, and you may still have REIN issues in the area which will not be picked up @ 612Khz as REIN is often notoriously difficult to pin-point. This method can be a bit hazy so don’t rely on it completely by any means.
Xmas lights are a classic cause, as are noisy electrical appliance with a long length of wire which acts as an antennae. Sometimes you can cure it with a ferrite sleeve (that small cylindrical thing you normally see along your monitor cable which doesn’t seem to do anything) which you can get from electrical suppliers such as Maplin.
Edited by happyrock, 24 July 2009 - 08:12 AM.