Visitor
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4 Messages
Modem constantly rebooting
Modem losses connectivity constantly, usually in the mornings, then will run flawlessly all day. It is extremely disruptive. Started ever since Comcast "upgraded" the network to fiber in my area. Any idea how to tell what the problem is?
EG
Expert
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118.5K Messages
5 years ago
Start with the modem's signal stats. Perhaps they already are, or they are close to being out of spec and intermittently they go completely of spec. Try getting them here http://192.168.100.1 or here http://10.0.0.1
Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.
What is the exact make and model number of the modem ?
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dbelling
Visitor
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4 Messages
5 years ago
Modem is a Arris T822R
Stats:
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EG
Expert
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118.5K Messages
5 years ago
Everything is out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.
In an effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold-colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.
Also check the coax cable for any damage such as cuts, nicks, kinks, sharp bends, etc.
If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.
Good luck with it !
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dbelling
Visitor
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4 Messages
5 years ago
My current set-up is the line coming from the pole goes to a comcast installed 2-way splitter: one leg goes to the cable box, the other leg goes to a Leviton 6-way splitter (my equipment, in a media center). One of those legs from the 6-way goes to the modem.
I switched the modem and cable box; modem from the 2-way splitter, cable box from the 6-way. This dramatically increased signal strength and my random re-boots quit, but the cable box now doesn’t work. Cable box says it can’t connect to the internet.
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dbelling
Visitor
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4 Messages
5 years ago
I looked more closely at the 6-way splitter. It says it is 5-2150 GHz.
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