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Forum Discussion
C7800 networking issues
Running c7800 on Comcast... Having some issues.. Wireless clients can't access computers by using //name and have to use local IP addresses.. Wired uses don't have the issue.. Bigger issue, I can'...
I've had the same issue for the past several months. After a power interruption causes the R7800 to reboot, it fails to make a connection to my Comcast/Arris TM822 cable modem. I have to power down the R7800 and physically disconnect the ethernet cable connection to the modem, then power the R7800 back up and reconnect the cable before I can get an ethernet connection. Sometimes I have to repeat the process several times in order to get a connection. The R7800 just started this behavior after the last few firmware updates.
D_Shed wrote:
After a power interruption causes the R7800 to reboot, it fails to make a connection to my Comcast/Arris TM822 cable modem. I have to power down the R7800 and physically disconnect the ethernet cable connection to the modem, then power the R7800 back up and reconnect the cable before I can get an ethernet connection.
Yup. That's a standard issue. Got me too.
Power cuts usually take out both the modem and the router on a network. When the power comes back on, they may start up in the wrong order, with the router starting before the modem is ready. That means that they get confused about which is in charge, leaving you with a dead network.
Be sure to restart your network in this sequence:
- Turn off and unplug modem.
- Turn off router and computers.
- Plug in and turn on modem. Wait 2 minutes for it to connect.
- Turn on the router and wait 2 minutes for it connect.
- Turn on computers and rest of network.
You should not need to unplug anything. Just give it time to get its act together.