* ADSL modem connected to internet
* WiFi router (Netgear WPN824v2) connected to ADSL modem
* CPU, iPhone and iPad connected to router, CPU wired connection.
Everything has worked like a charm up until a couple of days ago. Now the link between the router WAN port and the modem randomly drops. Stays dropped for 1-3 secs and then connect again. When its really bad this happens with 5-10 secs intervall. This made it impossible to use the network from any of the devices.
If I disconnect the CPU from the router and connect it direcly to the modem and change the IP settings to match the modem network the CPU connects without errors to the internet, iPad and iPhone connected to the router keeps having problems.
Restarting the router does not change anything and it seems to be more frequent errors during heavy load hours, in the morning I have almost no problems at all, in the evenings I cant almost use the wireless devices (CPU works fine as its now connected directly to the modem not through the router).
I havent changed a setting in the last year, it just came right out of the blue.
I have hard reset both the modem and the router and reconfigured them (that I dont want to do again as I have some virtual servers, port forwards, port triggers and so on :P).
As it came right out of the blue without me changing anything on any device and as it seems to be more frequent during heavy load hours I'm suspecting that the ISP is involved, but how can they be (it works fine with devices connected straight to the modem)?