If it works fine elsewhere as you said and only at home it doesn't. We recommend first that you check your router configurations specially the security features as they may inpact your connection. You can find more information here: Technicolor TG582n - Help & Support and also: HOW TOs or contact them directly first to see if there is any extra configuration to resolve this issue. Here are their contact information: Get in touch – here’s how to contact us | Spark NZ
As a second option you can check these other solution below:
1 - Disable Power Saving Functions: Go to Control Panel >> Hardware and Sound >> Power Option >> Set the High Performance and apply to default settings.
2 - Check the Change Plan Setting - Change the Advanced power settings >> Wireless Adapter >> Power Saving Mode and make sure both On Battery and Plugged in are set to Maximum Performance.
3 - Set the Advanced Settings for the Wireless Adapter - Go to Device Manager >> Network Adapter >> Intel(R) Wireless Adapter right click and select Properties.
4 - Check the value of Transmit Power and make sure it is set to 5. Highest.
5 - Change channels on the router mught help as well: Wireless Networking — What Are the Supported Wi-Fi Channels for IEEE* 802.11n 40 MHz?
You can aslo check the other solutions available in the links below:
Thanks. I have also tried the second option, no solution.
On the first option, you say "check your router configurations specially the security features". I'm not sure what to look for?
One thing to note is that my router has worked fine for year and still works flawlessly - with multiple notebooks, ipads, iphones - the notebooks all running Windows 7.
Now with a new Asus Zenbook running Windows 8 - doesn't work, and it also stops the Windows 7 laptops from working. When I switch off the Wifi on the Windows 8 laptop, the Windows 7 one works fine. When I switch on the wifi on the windows 8 laptop (asus) it messes up the network - with non-existent speed and very intermittent connection.
I read somewhere it could be to do with UPnP...
Try to contact the router manufacturer first in order to discard any possible configuration issues. Inform them exactly what is going on taking into consideration that the wireless adapter works just fine with other networks as you have previously informed.