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Forum Discussion
Solved
Overloaded C3000-100NAS?
Problem: Two or three times a day for short periods of usually no more than 15 minutes, we are unable to connect to the Internet (Comcast). When it happens, all devices on the network are affected. I...
It's been a week since putting the C3000 in bridge mode and making my new WAC124 the router and no recurrences of the outages I've been seeing. Also five days since replacing the powered splitter with an unpowered one which has brought the power levels down to the range plemans said it should be (seeing about 5 dBmV on each download channel).
My conclusion, largely from another forum where I posted the issue, is that C3000 has too small a NAT table which was becoming exhausted under high demand. It would appear the WAC124 has a larger one (unfortunately, I could not find spec sheets for either listing the size).
I'm considering this issue resolved.
What speeds do you pay for?
What speeds do you get hardwired to the router?
If you log into the C3000 and take a screen snip of the cable connection page and the logs, that can help.
I believe (Comcast doesn't make it easy) I am paying for 150Mbps down / who knows up. Despite that, a recent speed test from a wired computer game me 233 Mbps down and 12 Mbps up while my Wi-Fi connected laptop showed 120 Mbps down and 11 Mbps up.
Screenshots of the cable connection page, log, and event log are attached.
- power levels are a bit high. Optimal is between -7dbmv and 7dbmv. You're in the upper range of stable. But not seeing errors.
Maybe the power level is going up a bit at times and causing issues. I'd try an attenuator or you can try a splitter in line to see if it drops the level and keeps it more stable.Interesting. I have a powered splitter to split the cable to the modem and to a TiVo. I'll try replacing it with a non-powered splitter.
Why a powered splitter? Well, while today the cable only serves those two (upstairs TVs servers by TiVo minis via Ethernet), when the cable had to serve upstairs TVs, there were problems due to the long run (length of the house, up to the attic, another splitter, and then back to the master bedroom - probably over 100 feet). Putting a powered splitter both for the run to the attic and another in the attic cleared up the TV reception problems.