It is normal for your US/DS (upstream/downstream) lights to come on briefly during connection establishment. Flashing or continuous flashing US/DS LEDs indicate that the modem cannot establish a connection due to a defective or missing signal. The typical reasons for this are: The modem did not work.
What Causes the US/DS light to Blink on Xfinity Internet Connection? … splitter provides the connection to the TV, Phone and the Wifi Modem.
ARRIS is known around the world for innovation in communications. … US/DS, Blinking – The modem receives low quality or no cable signal. Loose or .
Solved us/ds flashing blue on Arris TM1602 … you using your phone to post the message – if so, are you using Wi-Fi provided thru the modem ?
The Arris Touchstone cable modem has five LED lights on the front indicating the network status. These indicate the following: Power If the power light is blinking .
Arris TG862 DS downstream tab orange and us upstream tab blinking … He needs to check the modem indicators and will read some signal level … The US light blinking means that there is no US communication happening.