Really odd networking problem

Pleb5919 · 24 May 2011

Thanks for the tip. I tried that, switching it from b/g/n to "b only", and the problem went away.

However....that slows down everything on my network, since everything else is N.

If I switch the laptop back to b/g/n, the problem comes right back. It's like turning a light switch on/off (in terms of how reliable is).

Is this an indicator of a hardware problem with the router or the laptop?

Did yours do this with *every* router you connected to? Or just to one router? Mine functions with b/g/n with *every* router except the one in my house.

Pleb5919

DustSailor · 24 May 2011

You could try disconnecting your router, uninstalling any software you've installed with the router, and reinstalling it as brand new (I'd follow the manual). You would again have to make a new profile on each computer connecting to your router in order to connect to the internet. Other than that, I've never had this problem before, I would suggest looking it up on google and see other threads of people having the same problem. Someone may be able to share their experience in solving this issue.

blibbka · 04 Apr 2012

stevewillette, thanks for this. I came across this thread after a Google search and steve's suggestion fixed it right away.

Like Pleb I found that my speed was significantly (but not to a problematic extent) slower once I'd switched to b only instead of b/g/n.

I switched to b/g and then I found speed was back to normal but without the drop-outs and upload problem.

To summarise my problem for the benefit of other Google searches:

I have a Samsung R620 laptop computer, with a Realtek RTL8192E Wireless LAN 802.11n PCI-E NIC wireless adaptor.

I have just had O2 broadband setup in my flat. I find that connecting to the O2 v5 router via an ethernet cable, all is good.

But when I connect using the laptop's built-in Realtek wireless adaptor, uploads fail and the connection is lost intermittently. If I go to speedtest.net, the upload test does not take place, and this is also noticeable when trying to upload an image to facebook, for example.

I have two Samsung R620 laptops, and both exhibited exactly the same behaviour.

After a few calls to O2 tech support, changing the wireless channel, the wireless network SSID, restarting the router, the problem persisted.

Eventually I tried using a USB wireless adaptor on my laptop and the problem dissapeared, which narrows the problem down to the laptop's built-in wireless adaptor.

I changed the adaptor settings to "b only" from "b/g/n", problem goes away but speed is down. Changed adaptor settings to "b/g" and now it works perfectly.