What is Upstream Power Level?

 Upstream power levels that are too high will affect a modem connection's consistency. As the levels increase, the modem's ability to connect to the provider decreases, which may cause the modem to power down or disconnect. As with all modulation signals, the upstream power level tends to fluctuate depending on various influences including temperature and signal interference. If the problem is on your end, it may be due to poor cabling, bad connections or a faulty splitter. Troubleshoot your upstream power levels by first capturing the initial results and then begin going through the procedures necessary to identify the problem.


Step 1
Connect your computer directly to the modem, using an Ethernet cable. Open a Web browser and type your router's IP address in the address bar, such as "192.168.0.1." This accesses the modem's software interface.

Step 2
Click the "Status," "Signal" or "Statistics" link. The names can vary by manufacturer and modem model.

Step 3
Locate the "Upstream" section and find the listed power level. Acceptable levels are usually between 30 dB and 55 dB. If the upstream power is above 55 dB, it needs to be lowered. Disconnect the modem's power, wait five seconds and reconnect it. Check the levels again after it powers up to see if levels have improved.

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