NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
+9dB downstream not good enough?
Connection troubleshooting states "Good Downstream power levels are within -7 to +7 dBmV". However, even at +9dB, my CM1150V was not providing a solid link, my router was frequently loosing connectivity (often displayed a red link light and we experienced poor wifi performance). Yet when I removed the 3-way splitter, bringing the downstream power up to 13dB, now it is working fine. Note an Xfinity modem worked fine with the 3-way splitter over an extended six to nine month period, no problems (sadly, when the Netgear was not doing the job, I had to pay $75 for a service call and they hooked up their modem, and then it worked fine).
12 Replies
+9dB is too high:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.
What is the brand and model of the host wifi router connected to the modem?Thank you for your response. Yes, I did see that. However, if +9dB is too high, then why does +13dB work flawlessly? Since removing the 3-way splitter increased the power to +13dB, it has worked flawlessly. I haven't had a single disconnection. I have to get ready for work, but I am attaching a snapshot of my connection status while I was experiencing the difficulties. I'll see about getting the log tonight. Thanks again.
If it works fine without the 3 way connector, I'd really be suspicious of the 3 way connector.
You can run your signal hot but it can cause issues and longevity problems.
that's why we recommend it at lower levels.
