Dual Network Issue

jc0r · 11 Aug 2018 at 07:55

Hi

I've got an issue with a machine been connected to 2 networks at the same time.

I have one network that I connect to with a wire that provides Internet, then my wireless adapter connects to a separate LAN that does not have Internet access but other LAN users I need to communicate with.

The ip address' are set to a different range so as to not conflict.

Initially all works well but after what would appear a random time, I lose access on my LAN network. I remain connected with an ip address to the network, but I cannot ping any other computers on that network and they can't ping me. I set the ip lease time to 24 hours on both networks incase that was doing anything but no joy. I also tried reserving IP address on both adapters, nothing. I looked into Metric index but can't see how that would help. I don't want to prioritise o e network over the other, I want them both to work at the same time.

Anyone got any ideas please?

jc0r · 11 Aug 2018 at 10:52

Thanks for the reply. I forgot to mention, when I lose access on the wireless lan, I can still ping the router just no other machine on that network and they can no longer ping me. The wired network that has Internet works fine.

Ive tried increasing lease time which doesn't help. I've set mine machine to have a static, that doesn't help either.

jc0r · 11 Aug 2018 at 11:06

Yeah there are no other networks in range. Like I say, I can still ping the wireless router, just not any of the other machines on the same network. It feels like a routing issue within the pc but I can't figure out what. I don't want to play with the metric as I don't want one network over another. I want access to both

jc0r · 11 Aug 2018 at 11:46

There is no link between both networks. And as you say, one network range is 0.1, the other 1.1.

I will look into the route add cmd. Not something I've used before. Just seems strange it works on initial connection, then drops later. Many thanks

jc0r · 12 Aug 2018 at 07:41

An update after this setup was used yesterday. I rebuilt my machine that connects to both networks to get a fresh start. My setup worked flawlessly for 3 hours until I lost access to the machines on wireless lan. When this occurred, I was unable to ping the wireless access point however Windows reported I was connected to the network. The wired network was still functioning perfectly which gives me my Internet access. I disabled/enabled the wireless adapter which corrected the problem. I'm starting to think it may be a driver issue? I've got a stack of different wireless adapters so do you think it's worth swapping it out?