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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.
Just an update to let you know I'm not ignoring the suggestion. I found the unpowered splitters I had were not suitable for today's needs so am working on getting a new one. In the meantime, based on a response in another (non-Netgear) forum where I posted this, I have gone ahead and reconfigured to put the C3000 in bridge mode and make the WAC124 the router. I want to give it a few days like that before making another change.
While getting the power levels in spec is certainly important, I don't think it's the problem. I'm fairly convinced that the problem is only with new TCP connections and not with UDP or existing TCP connections and from my days doing system administration on various computer systems, most "existing works, new fails" type problems are resource exhaustion issues (I've worked on systems where if you saw something hung in a Resource Wait state, your next step was to start asking when you could reboot the system). If the power levels were the problem, I'd expect everything to fail, not just new.
You're welcome to try whatever you think is going to work.
I would try and get the powered splitter feeding the modem out of there. It can give you to high of numbers as well as cause issues on the upload.
I would try and get the powered splitter feeding the modem out of there. It can give you to high of numbers as well as cause issues on the upload.
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.