I have two Balance 20s running the latest version of the firmware at two different locations. Both have been in place for years so I am pretty familiar with them. When I look at one of them the client list is always an accurate representation of the network.
On the trouble one I often see the same computer name assigned to different IP addresses. My guess is this is a problem on the network, not the Balance 20, but I don’t know where to start looking. It has been going on a long time, but only recently has hampered my ability to pinpoint heavy talkers.
As far as I can tell the Peplink is the only DHCP server on the network. The DHCP IP range is 192.168.1.210-192.168.1.250 255.255.255.0 I have 28 devices with a DHCP reservation under that range. Lease time is 4 hours.WINS servers is not enabled and there is no Extended DHCP option, Bonjour Service or static routes.DNS Proxy Settings are on.
Right now one of the devices with a reservation with the name AlanPC shows in the client list 7 times with other MAC and IP addresses. If I connect to any of the other addresses they are other devices that are legitimately on the network using one of the other DHCP reservations.
All of the PCs on the network are Windows 10. Cameras on the network are mostly Foscam devices with some form of Linux on them. WiFi devices are Peplink devices or ASUS. I have verified the settings on all of these devices and nothing seems inconsistent. There are no true WiFi bridges on the network, but there are outdoor WiFi transmitters and receivers made by Ayrmesh with no DHCP servers on them. There are a couple of Direct TV boxes on the network and to the best of my knowledge their network settings are fine.
Today for the first time ever I see 126.96.36.199 in the client list. It’s MAC address does not match any of the HCP reservations. I have never seen 188.8.131.52 before, but when I started typing this it had the name AlanPC and has since changed to one of the other devices names and back to AlanPC just while I type. The last time the Client List refreshed 184.108.40.206 was gone completely then the next refresh it was back.
The site is an hour from my house on a large donkey rescue sanctuary where I volunteer so it is a big challenge to do something like turn all devices off then restart them 1 at a time to see which one causes the problem to come back.
Does anyone have any advice on what I can look at to trouble shoot this? I only know enough to be dangerous here.