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ci1551

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Issues upstream and downstream

having connection issues. 
tests are giving me about half download speeds and zero to barely uploads. Have done all the normal tests , reset model, went direct to modem. The snapshot is about ten minutes uptime.

 

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WiderMouthOpen

Esteemed Contributor III

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The fact that it has a IP of 192.168.0.1 makes me think you got a modem/router combo by Arris. What model is it exactly? If possible, have you tried bridge mode? Also, your downstream signal levels are a bit on the low side, specially on one of the downstream OFDM channels which has a SNR of 35. Any splitters or filters between the coaxial at the street and where it enters the room with the "modem"?

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ci1551

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Arris sb8200, one splitter (1:2) was replaced last year by cox. No amplifiers

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WiderMouthOpen

Esteemed Contributor III

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Odd, wonder why you can access it from, 192.168.0.1. Did you create a static route? As per here the default IP is 192.168.100.1. No matter. Just explaining why I thought it was a combo. Do you need the splitter for a TV box? If not, I suggest swapping it out with a coupler. If that doesn't work or you need the splitter, you need a tech. The main issue would be the downstream OFDM channel number 2. Let us know how it goes.

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ci1551

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Thanks for the reply.
 
yes the split is needed for TV, will schedule a tech

Strange, looks like both addresses go to the modem.

 

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WiderMouthOpen

Esteemed Contributor III

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Maybe has something to do with certain router manufacturers blocking the 192.168.100.x subnet. Good to know. Let us know how the technician goes. Happy holidays!

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