Hi @david64 thanks for your reply. Sorry, I don't know how I deleted my post. It was unintentional. I'm glad you got an email copy.   From my point of view, with your help and guidance, I think we have confirmed the problem is in the VX220 modem/router that TPG have sent me. This is based on:   1. When the fault occurs I cannot ping the VX220 (192.168.1.1) from an ethernet connected device or a Wi-Fi connected device. 2. When the fault occurs ipconfig shows the "default gateway" is blank and the IP address on the device has changed to 169.254. TPG's self-help document "Browsing issues" says an IP address starting with 169.254 indicates your modem is failing to get a response from the DHCP server. 3. You've mentioned the DHCP server setup is in the firmware on the VX220 modem. 5. Therefore we can conclude that the VX220 that TPG have supplied is not working as expected and should be replaced.   I will request TPG send a replacement modem to me ASAP.   Thanks for all your help. Cheers, Tony   ... View more

Hi david64, Thanks for chipping in to help resolve my problem.   The old router has gone to recycling so I can't use it to test the connection. It was a white colour, sorry I don't know the model. PS - it was replaced due to overheating concerns, but I never had any connectivity issues when I was using it.   When I lose internet connection, all the status lights on the VX220 and the NBN box don't change. The "internet" lights are still ON.   To recover the Internet connection, I have to power off the VX220, wait a few minutes, then restart it. All devices are then able to connect and get Internet access. I don't need to power down the NBN box, only the VX220. The problem seems to occur when our devices go to sleep. When they wake up again the Internet connection is gone. PS - I notice this morning when I woke up my HP desktop (with Ethernet connection to the VX220) the Internet connection was gone, and I was watching the network status, it was cycling between "Unidentified network - no Internet" then a few seconds later the status changed to connected for about 1 second, then it dropped out again with the "Unidentified network - no Internet" message again. This cycle repeated continuously until I restarted the VX220.    Are there any messages in the VX220 System Log when connectivity drops? Great question and here I have another potential problem. As part of my fault analysis I tried several times to log into the VX220 (http://192.168.1.1) and when prompted for a password I entered the same password that I use to connect all my devices. That password does not work. I get a message telling me it's the wrong password. Is there a different password I should use to actually log into the VX220 i.e. a different password than the password I use to connect a device to the network?   During connectivity dropout, the PC's Wi-Fi icon changes to an icon that looks like a world globe. The same happens on my PC with the Ethernet connection to the VX220. Does that mean the device has lost all connectivity to the network?   One more piece of info that might help diagnose the problem. A friend came over last night with his HP laptop. He travels a lot and has never had problems connecting to Wi-Fi networks. When he tried to connect to my home Wi-Fi network he couldn't connect. He got exactly the same errors and behaviour that our devices are having. Regards, Tony ... View more