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Forum Discussion
Security Concerns. C7000v2
Hi All,
the past 8 months i have been monitoring something strange on my network. As a tech illiterate, it has been an evolution in trying to understand what is happening.
Hopefully there is either some answers or reassurance out there.
-NightHawk C7000v2 Combo
-Firmware is V1.03.08
-ISP is Xfinity Cable
Question:
-On my admin page, i have DLNA turned off, confirmed many times, on the nighthawk app there is no DLNA server present. On the below Fing network tool screen shot below you will see it is present. it always is, except for about 1-2 hours after i factory reset the Gateway. then it returns. how do i remove completely and why would it not show on the App interface?
-On the screen shot there are 6 active devices on that network, two are accounted for as my iphones, the others including the DLNA server 10 (11,30(not pictured)) should not be on this Channel. In an attempt to be more secure, I have restricted "new 2.4" to only my two phones, there is nothing I have ever typed that password into other than those 2 phones. All other devices in my house, both family and friends use the 2.4/5 guest network channels and those are the only SSIDs broadcast. there should be no trace of New 2.4 to anyone but me. I am wondering how other devices show up on this channel. Please note all info is based on this third-party app i am using. It has been pretty accurate in the past for devices coming and going on my guest network.
-Check out the screen shot where it shows my gateway, which is absolutely a NetGear nighthawk. the gateway says c7000v2, but adjacent to it, it says Motorola surfboard sbg6580. I found screen shots of the same app, from last fall, the same place it says Netgear CSIS 3.0 Cable Modem Router. I cannot reconcile that in 6 months' time, the same app has confused the hardware. this has led me to concerns for what is triggering the error in labeling.
-Lastly, what has caused me to come looking for more information, the aforementioned segmented networks, consists of a 2.4 and 5Ghz Channel, for the last 3 weeks, although i can access and log on the 5ghz channel, there is never any actual connection available. I can join, password connects, but my phone defaults to carrier service and the WiFi dashboard on my iPhone says "no internet connections" this is all day everyday. I have reset the device multiple times in those 3 weeks and changed the password. nothing has fixed it or changed it, it still shows as i can connect, but no Wifi data.
Any insight to any of the above would be greatly appreciated.
thank you all for your time!
10 Replies
Have you seen this knowledge base article:
https://kb.netgear.com/24314/How-do-I-specify-ReadyDLNA-media-server-settings-on-my-Nighthawk-router
Are you operating in a crowded RF environment? Lots of close neighbors, lots of devices that transmit Wi-Fi?
Hi Kitsap, thanks so much for the info. Yes, i have seen that and confirmed that DLNA is NOT enabled on my settings.and i have used the linked as a guide to inspect the expectation.
as for a crowded RF environment, that is a negative. I live in a fairly rural area and although i can see my neighbors, none are close enough to interfere via their equipment.
Can you please advise what your answer would have been had i said yes? i am interested in this because although i am not in a crowded RF area, perhaps the solution lies a the manufactured RF environment from a party trying to infiltrate the network.
thanks so much!
HeadPhoneJack wrote:Hi Kitsap, thanks so much for the info. Yes, i have seen that and confirmed that DLNA is NOT enabled on my settings.and i have used the linked as a guide to inspect the expectation.
as for a crowded RF environment, that is a negative. I live in a fairly rural area and although i can see my neighbors, none are close enough to interfere via their equipment.
Can you please advise what your answer would have been had i said yes? i am interested in this because although i am not in a crowded RF area, perhaps the solution lies a the manufactured RF environment from a party trying to infiltrate the network.
thanks so much!
If you had a crowded RF environment with a number of "electronically" close neighbors, it could complicate the process of tracking down the device where the DLNA server is running.
Any number of devices connected to your network can be host to a DLNA media server besides your router. Computers, phones, tablets, televisions, game stations, etc. can often be configured, or by default are configured for a media server.
Through the application you provided the screen shot from, or from the router user interface, click or double tap on the connection to reveal additional details. What you are looking for is a MAC address of the device where the connection is associated.
Do a web search for the MAC address. The first three groups of alpha numeric characters should identify a manufacturer. It may not be a manufacturer you recognize as it could be the manufacturer of the Wi-Fi radio in the device you are trying to identify. Not the manufacture's name on the outside.
If per chance the MAC address you identify is the address of your router, then you have not been successful in shutting down the server running on your router. Remember it is not unusual for devices to have multiple MAC addresses. For instance, a router could have one for the Ethernet connections and one for each Wi-Fi radio band.
If you are connecting to a new iPhone, it has a MAC address randomize feature that can present several addresses to the connection. Newer Samsung phones as well as Windows 11 computers also have that feature.
