netgear c3000-100nas overheating/not accepting internet connections

Hello Hang94

You said that the modem is overheating have you tried placing the modem in a open space where it gets good airflow to see if this helps at all? and when you say the modem is declining Internet do you mean that it keeps dropping in and out on you if so i would make sure all your connections are tight make sure your not going threw a cable splitter which can cause issues with cable levels. The suggestion for the Wifi being slow is make sure you don't have a older wireless devices that only have 802.11 B connected to the wireless if so these devices can pull the whole wifi speeds down to the 10-15 Mbs range that your talking about. If you continue to have overheating issues I would suggest contacting support if your modem is still under warranty. hope to hear your feedback.

DarrenM