Technical issues with modem, router, or related devices.
Technical issues with modem, router, or related devices.
Hello! Yesterday there was a really strong storm. After the lights went out twice, I turned off the modem, router, and computers. A few hours later I restarted everything but still couldn’t get online. Thought it might be a service disruption. Spoke to Comcast, who confirmed an interruption in my area. I went to sleep and woke up today with the same problem. The modem is working fine, all lights are normal except for the Ethernet port indicator. Plugging everything back in didn’t help. I tried connecting my computer directly to the modem, but it didn’t work. Tried another computer, same result. I connected the one in the living room, which worked perfectly. I checked the router and reset it, but nothing changed. I’ve tested multiple Ethernet cables without success. It seems the modem might have been affected by the storm. Maybe I should replace it and get a new one, then reconnect everything with my ISP. Until then, only the living room PC is online. I’m reaching out to Comcast for more assistance. This situation is really frustrating.
Modem settings appear fixed. Only IPv6 connection detected. Previously attempted to adjust via router but failed due to lack of communication. Log entries indicate DHCP initialization problems in other devices. Router supports DHCP and is enabled. Recent logs show synchronization failures and timeouts. Event details confirm repeated issues with network configuration.
He uses a regular cable modem, not a bundled device. You won’t be able to configure any IP settings yourself—Comcast manages that. How are your connections appearing? Also, was this modem installed by making a phone call or via the internal setup interface?
I installed the new setup via the web browser. However, when I tried it again recently, the agent still wasn’t functioning properly because of poor speeds. Most of the issues have been resolved. Could you clarify what you mean by 'signals'?
You needed to configure your CenturyLink modem with pfSense to ensure proper functionality.
I’ve only experimented with cable connections a few times—mostly ADSL or VDSL. The majority of those modems don’t have a fixed LAN IP; some even use a DHCP server. I had to change my setup to a permanent address.
On the modem diagnostic pages you’ll find a signal section. Signals must fall within specific limits for service to function. https://www.dslreports.com/faq/16085 This resource contains all the necessary details. If your readings are within the acceptable range, it’s fine; otherwise, contact Comcast to investigate the issue.