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Wifi issues since upgrading from Medium to large fibre

I recently upgraded from fibre 40 to 80.  I had a couple of BT system faults that have now been resolved.

 

I have a number of devices that are connected via wifi but one of them is really struggling.  It is a basic windows 8 laptop.  It was fine when using 40Mb fibre, but really struggles to load web pages.  Other devices seem to be OK.

 

As part of the original fault process I was sent a new HG633 Router, which is running v1.21t software.

 

Is wifi configuration changed in any way when increasing your fibre speed?  I am trying to work out why my laptop, which worked fine on the 40Mb service, is now almost unusable on the faster service.

 

I have my main laptop and the problem machine parked within a few feet of the router and the problem machine is not improved.  I have a cordless phone nearby, which I switched off and unplugged to see if this was interfearing and there was no improvement.

 

The wife error rate seems really is really high (see below).

 

I have run a wifi analyser and changed the channel to 11 (as I dont think this is an overlapping channel).

 

I have no new equipment in my home that would interfear with the packets.....

 

Any ideas what I can try?  The problem laptop is using a Broadcom 802.11n adapter.  I dont have an ethernet connection on this machine, but I am getting near perfect performance via ethernet on my main machine.

 

InterfaceReceivedSent  BytePacketErrorDiscardedBytePacketErrorDiscarded

5GHz : TALKTALK5BF895299876382863341538807583529141663190814172483592325
2.4GHz : TALKTALK5BF89515844997051321124129964870881978761201751089301274241742

48306

 

 


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