What an Idiot!
I recently bought a cheap cordless telephone to replace my 20 year old phone in the louge (I have a slightly more up-to-date one upstairs!).
After installing it, and moving my Netgear wireless router, I noticed the signal strength of the router was reduced. It's been like this for about a week. After learning that cordless 'phones can disrupt wireless routers, I have tried everything to improve the signal.
I have switched off the 'phone base station, moved it away from the router, even disconnected the battery from the handset, and hid the handset in a drawer well away from the router. The router has also been moved from shelf to shelf, had the antennas on both the router and my PC swivelled every which way, I even had the router on the floor. I tried making signal boosters from cooking foil and an empty drinks can. All to no avail. The signal strength at the PC never went above low.
Even when I used my laptop next to the router it was still less than 50% strength.
I thought about installing a new antenna or getting a new router.
It was driving me nuts as the PC kept losing the connection, and running downstairs all the time to fiddle with the router is very tedious - especially when it makes no difference at all.
Needless to say, the solution was simple: in the couple of years I have had the router, occasionally swivelling the antenna had actually unscrewed it. I did pull it off the other evening to see if it was removable, and was surprised that it apparently just plugged in.
I have now screwed it back in tightly, and am currently getting maximum signal. As the title of this post says, what an idiot I am!