--- title: "Cable Modem Monitor" description: "Cable Modem Monitor is a Marketplace integration for Home Assistant. It has 106 installs sharing analytics, works locally and was last updated October 27, 2026." canonical: "https://vulpo.app/integrations/marketplace/solentlabs-cable-modem-monitor" url: "https://vulpo.app/integrations/marketplace/solentlabs-cable-modem-monitor.md" last-updated: "2026-10-26" version: "1.4" --- # Cable Modem Monitor > Cable Modem Monitor is a Marketplace integration for Home Assistant. It has 106 installs sharing analytics, works locally and was last updated October 27, 2026. Cable Modem Monitor tracks cable modem signal quality, power levels and error rates locally from Home Assistant. It reports power, signal-to-noise ratio and frequency for each downstream and upstream channel, along with corrected and uncorrected error counts and per-minute error rates. Connection status, uptime, last boot time and reboot detection are included, and ping, TCP and HTTP health probes run on a separate schedule from the full data poll. A button restarts the modem, and actions can refresh data on demand, generate dashboard YAML, and clean up orphaned statistics. Modems from many manufacturers are supported, including ISP-branded units, and entities can be named by channel number or by channel ID. Setup happens in the UI, where the modem model, address and optional credentials are entered, and no data goes to a cloud service. Automatic summary of the README and code of solentlabs/cable\_modem\_monitor. Something wrong, or are you the maintainer and want your own text here? [Get in touch](https://vulpo.app/contact) [Open in My Home Assistant](https://my.home-assistant.io/redirect/hacs_repository/?owner=solentlabs&repository=cable_modem_monitor&category=integration) On Home Assistant 2026.11 or newer? [Open it in the Marketplace](https://my.home-assistant.io/redirect/marketplace_repository/?owner=solentlabs&repository=cable_modem_monitor&category=integration) ## Supports - **Works locally**: Talks to your devices on your own network. No vendor cloud in between. - **From the Marketplace**: Installed through the Marketplace, formerly HACS. - **Actively maintained**: Its author released or pushed a change in the last six months. ## Setting it up Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services. ### Cable Modem Monitor - **Manufacturer** ### Modem Found - **Is this your modem?**: Choose the first option to continue. The second lists the other likely matches from the search, and the third opens the full manufacturer list. - **Entity ID Prefix**: Adds model name or IP to entity IDs. Required when monitoring multiple modems. - **Channel Naming**: Channel Number names entities after the modem's row position (stable across reboots). Channel ID uses the DOCSIS Channel ID (matches ISP diagnostics but can change on reboot). ### Select Modem - **Modem Model**: Select your modem model from the list. - **Entity ID Prefix**: Adds model name or IP to entity IDs. Required when monitoring multiple modems. - **Channel Naming**: Channel Number names entities after the modem's row position (stable across reboots). Channel ID uses the DOCSIS Channel ID (matches ISP diagnostics but can change on reboot). Also asked when at the modems found step. ### Firmware Variant - **Variant**: If unsure, try the first option. Options marked \* have not yet been verified on real hardware. ### Connection - **Variant**: Switch only if you think a different variant matches your modem. - **Modem IP Address**: Usually 192.168.100.1. Include http:// or https:// to skip protocol detection. - **Username**: Leave blank if not required. - **Password**: Leave blank if not required. ### Reauthenticate - **Modem IP Address** - **Username** - **Password** ### After setup - **Modem IP Address**: Usually 192.168.100.1 - **Username**: Leave blank if not required. - **Password**: Blank keeps current password. - **Data Poll Interval**: How often to poll modem data. Default 10 minutes. Set to 00:00:00 to disable automatic polling (manual only via Update button). - **Health Check Interval**: How often to check modem reachability. Default 30 seconds. Set to 00:00:00 to disable health checks. Texts from the code of [solentlabs/cable\_modem\_monitor](https://github.com/solentlabs/cable_modem_monitor). ## Actions - **Generate Dashboard**: Generates ready-to-use Lovelace YAML for your cable modem dashboard. Copy the output and paste it into a Manual card. Fields: Device, Status Card, Downstream Power Graph, Downstream SNR Graph, Downstream Frequency Graph, Upstream Power Graph, Upstream Frequency Graph, Error Graphs, Error Rate Graphs, Latency Graph - **Request Refresh**: Triggers an immediate modem data poll, bypassing any connectivity backoff. Use in automations to refresh modem data on demand. - **Request Health Check**: Triggers an immediate health check (ICMP and HTTP probes). Only works if health monitoring is enabled for the modem. - **Convert Channel Identity**: Renames recorder statistics to match the current channel identity mode after re-adding the integration in the other mode. Modem must be online. Fields: Device - **Orphaned Statistics**: Finds recorder statistics for this modem that have no registered entity — left behind by a mode switch, channel rebonding (ID mode), or a prefix change. Without execute, returns a preview of orphaned entities. With execute: true, purges them all directly. Purge is permanent. Fields: Device, Execute ## Troubleshooting - **Diagnostics**: Downloads a diagnostics file to attach to a bug report. ## From the README > Monitor your cable modem's signal quality, power levels, and error rates from Home Assistant. Spot line issues before they cause outages, and build automations that alert you when something looks off. From the README of [solentlabs/cable\_modem\_monitor](https://github.com/solentlabs/cable_modem_monitor#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened. ## At a glance - Kind: Marketplace integration - Category: [Computers and network](https://vulpo.app/integrations/category/computers-and-network.md), Routers and network - Number: 106 installs sharing analytics; 56 GitHub stars - Connection: Works locally - Upkeep: Updated in the last 6 months - Needs: Needs the Marketplace (HACS on 2026.10 and older) - Latest version: v3.14.1, last updated October 27, 2026 - Domain: `cable_modem_monitor` - Source: - Issues: - Screenshot: https://vulpo.app/integrations-img/11669aeadf90dddb.webp (from solentlabs/cable\_modem\_monitor's README) In Vulpo: Button card, Chart card, Apple Watch Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about) Last updated 2026-10-26. 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