ADSL2+ uses additional higher frequencies as compared to standard ADSL. Perhaps it is these additional frequencies with which the plasma is interfering.

That's what I'm thinking is most likely. I'm going to ask around and see if I can borrow another router from a friend just as a process of elimination. If not I'll try contacting Panasonic (although the set is 2 1/2 years old, it came with a 5 year manufacturer warranty). If I don't have any luck there I might have to just sell it and buy a new set.

We have Panasonic plasma. The TV came with 2 of those iron chokes which the manual states must be put around the LAN cable on both ends.

I am unable to tell if our TV is creating any problems due to not being able to see the router stats on infinity.

I guess your tv has internet connectivity then. mine doesn't

In reply to a post by No_One:

I guess your tv has internet connectivity then. mine doesn't

mine doesn't either and it still affects the router. I dont think this is anything todo with a plasma using the internet. It's somekind of interference they give off and from this thread it sounds like they all do it prolly some worse than others. IF you do end up selling your plasma it might be a wise choice to get a lcd tv as they dont seem to have this issue.

Just a comment (and I know this isn't hugely helpful) but I have had three different plasma TVs over the last 8 years - two of them Panasonic - and none of them have ever affected my ADSL.

My plasma is 2 1/2 years old but this problem only started when I upgraded to ADSL2+ which if far more susceptible to interference than ADSL is. I've just submitted an order to revert back to ADSL 8 meg. Once that's gone through I hope everything returns to normal

This is an interesting thread. Amateur radio operators have been aware of interference to their shortwave radios from plasma sets for many years, and Panasonic seem to be the worst offenders. Interference normally occurs over the whole HF range, 2MHz to 28MHz, and is apparently radiated directly from the plasma display itself rather than up cables - this passes EU EMC tests as they only do conducted emissions below 30MHz.

This is the first time I have seen this problem affecting ADSL. Apart from doing obvious things like keeping your broadband cabling away from your TV, the way forward is via Panasonic, who have been quite helpful in amateur cases. Or even better, ditch that plasma and invest in an LCD...

I had exactly this issue when my line got upgraded to ADSL2+. Previously I had no problems on ADSL Max with a rock solid 8meg sync.

Have you tried removing the ring wire on the master and all extension sockets?

I had an extension socket (with the sky box plugged in to it) within a couple of feet of my 50" plasma (router was plugged in to master socket at other end of room) and the ring wire was acting as a giant aerial and feeding the RF interference back to the master socket.

When I removed the ring wire, my sync went from 8meg to 15meg and the CRC errors etc dropped back to virtually nothing and I have not had any problems since.

I also fitted an ADSL Nation faceplate and RF Choke to the plasma power lead just to be doubly sure.

Hope this helps.

Tony

Edit: replied to wrong poster, should have been to No_One.

Edited by toaster1971 (Mon 11-Jul-11 14:10:32)

Post deleted by ChrisWilson

Edited by deleted (Mon 19-Aug-13 15:25:23)