I've had an RAXE500 router with a CM1200 modem for a few months and find various LAN devices (both wired and wireless) dropping connections randomly several times a day. You can see evidence of this in the router log where IP addresses are constantly being re-issued to almost every device on the network (total of about 20, half wired). The connections renew automatically every time but are interrupting streaming activity and causing nuisance notifications when monitoring devices drop off/on line.
Your router is two firmwares behind the curent, go the the netgear website and look up the RAXE500 and click support, it will show you the latest firmware and you just download it unzip it and then point your router to it and update. Updating via auto update has its issues so I have that turned off, your mileage may vary.
So we set the DHCP address pool to xxx.xxx.100 to 200 and assigned reserved IPs to all wired and wireless devices. Also have Access Control turned with "Block all new devices from connecting" checked. In spite of these we are still seeing IP addresses in the 100-200 range being given out to unknown devices. Tried searching the MAC addresses of these devices but no vendor comes up. Any ideas why this is happening and does it represent a security risk, These devices aren't staying connected for very long since they are never seen on the "Connected Devices" page.
Interesting theory - but nothing is connected to those 3 extra ports on the modem. I'm assuming these rogue devices are wireless and the concerns are twofold: 1. Why is the router allowing connection when it's set to not allow new devices and 2. How/why do these devices have the password? I do have a couple of MyQ door openers on WiFi - they would have the password - could they be a source?
Good point from the manual re blocking of internet access vs network access. My theory at this point - based on the time of day they show up - is these rogue connections are Amazon drivers passing by the house and momentarily connecting to the network in case they need to open the garage door. The password must be coming from the MyQ device in the opener.
The IP renewals show up in the logs (not app notifications thankfully). There are a lot fewer of them after putting all devices on reserved IP's. And the reason why these DHCP assignments in the 100 series stood out. I put all wired devices in the 002 to 049 group and wireless in 050-099.
I may end up shutting off the Amazon Key service since changing the wifi password won't make any difference if the MyQ opener just hands it out again.
