Increasingly intermittent bb access

[#1]

After a long period of trouble free access, my bb access in the last few weeks drops out ever more frequently.  The phone line is fine.  I recently (in the last two months) switched to a BT Voyager 2091 router (given to me by a happy PlusNet customer), because I acquired a laptop, and an Android phone.  However that worked fine until very recently.  I switched to WPA/WPA2 PSK security in early May 2013, but that didn't seem to cause any problems either.  The problems have appeared in the last two weeks, and seem to be getting ever more frequent.  I guess I could try my original wired router at the weekend , but I need my Android on wi-fi at least during the week. 
Is anybody experiencing similar difficulties or have any suggestions?
Thanks

[#2]

If you are connecting wirelessly, try a wired cable and see if that solves the problem.
I've just bought a new Dell laptop and I'm having huge issues with the wireless. All other computers in the house are fine, just this particular laptop

[#3]

Oh and worthwhile setting up some kind of monitoring on Thinkbroadband - it will ping your modem at regular intervals and show you a graph of how available your connection is.

[#4]

Thanks for the replies - I should have mentioned I am connecting wired to the desktop, and wireless to the laptop and android.  I will investigate your other suggestion.

[#5]

If you're anywhere near Wellingborough, I have a spare wireless router/modem you can borrow to rule that out

[#6]

Dom, thanks for the offer.  I am in south Beds, so it's a bit far.  I have set up the TBB ping graph. Need to run some errands, so will be logging off shortly.  Cheers, Mark

[#7]

Hi there,
I've taken a look at your connection and can see that you appear to be turning your router off frequently?
<img src="http://ccgi.psmith12.plus.com/visradius/generated/image13712144073368.png"/>
Would you be able to leave your router switched on and we'd be able to see when the drops are occurring?

[#8]

Thanks for the reply.  I have done as you requested and left the router switched on.  No problems with access since Friday.

[#9]

Good news
For reference, leaving your router on 24/7 will only cost you around an extra fiver a year (on top of what it costs when it's on during the day) - I've worked out the yearly running costs are less than a tenner when used 24/7 anyway

[#10]

Apologies.  I remember when first setting up that keeping the router switched on was recommended.  However I found that for the first 18 months or so I could switch off without issues.  The problems I have experienced of late seem to have disappeared since keeping the router switched on.
Mark