Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Why does the Cg3000d cable modem disconnect as soon as a video chat is going?
Document: Netgear Cg3000d Cable Modem/router Docsis 3.0I installed this router on Time Werner yesterday and it is up and running with very strong Wi fi and ether net. (Spelling)The only hitch was that they want you to give them a email address, but not one you already have.
I am in the Los Angeles area and when AT&T; raised their DSL price to the same price as cable it was time to move. After reading the reviews with mixed reactions, I called TWC to see if the Netgear Cg3000d would work on their system. They stated that it would and I spent the $24.02 to purchase it from Amazon while on the phone scheduling the appointment for TWC to install. The modem came two days later and the cable guy came the next.
Works great with Cox in N. VA.  Just sent Cox tech a chat message with Model, MAC address and serial number and quick admin log into router and was on Internet in 15 minutes. The price also convinced me to upgrade from old standard cable modem. One less device too (all in one ISP and wireless).
Very happy with this product and works great. Purchased Netgear cg3000d to replace an old one. Works fine with Cox cable.
I even got to connect to my VPN and remote into my lab computer!Overall, 5 stars! (so far at least, we'll see going forward). If you're thinking of ditching your DSL, try out TWC (or another local cable co.), buy this (or a compatible modem router) for cheap here, and finally get the speeds you were promised! (Yes, AT&T; U-Verse, that was a direct attack on you.)
I just got this product and am very happy with it. I have wow cable and this modem is faster than the one I was renting and the wi- fi router works fine for my 1200 sq.ft. house. I couldn't get the router going at first since theres no directions, but a simple email later and they sent easy directions and it works great now! in 5 months the rent I was paying for my wow modem will have paid for this
This approved for time warrner cable  modem isn't supported by net gear. You have to use TWC technical for support. Set up is easy, but unfortunately the cable modem keeps going off line. I had time warrner monitor my loss for connectivity , & they confirmed that the box went off line quite a bit. A line test was performed in the home & it's the box that continues to drop out. I had hoped to get away from paying for my leased box, but at least it's dependable.
Purchased to replace a leased Mediacom modem with same model number. Installation was a breeze. Plugged new modem in, removed the coax cable from the leased modem and connected to the new modem. Connected an ethernet cable from the modem to my laptop. Turned on my laptop and called Mediacom technical support. After about 2 minutes of going through the Mediacom menu selection, I connected to a tech support adviser. The adviser asked for my address, and then the MAC and provisioned my new modem.
I bought this to avoid leasing a modem from the cable company for $5 a month. I called netgear I was told i need to provide a proof of purchase to get free phone support. I hopped on chat support I was told they don't have support for this product he kept telling me to contact Cox even though they are not my ISP. I contacted my ISP they said they have very limited support that I should contact netgear.
I setup in under five minutes and only downtime was switching coaxial cable from rented SBG6580. I logged into TWC account, launched chat, provided MAC address of new modem, continued to browse while agent entered info, and then switched coaxial once agent said he was done. Then, I logged onto modem with default info (admin/password) and switched SSID and network key.The manual seems to indicate more features, that I usually never touch, including firewall settings, which are missing.
Answer: If you are using the wireless feature, try connecting directly to ethernet port. Also check with your cable provider. Maybe your internet connection is not fast enough.