Visitor

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2 Messages

Thursday, April 23rd, 2026 3:40 AM

Cannot get above 40 Mbps upload speed with UCI modem on 2 Gbit plan

I am unable to get faster than 40 Mbps upload speed using a UCI modem on a 2 Gbit plan. I have tried contacting tech support multiple times and they keep trying the same steps with no fix. Most recently, tech support told me I needed an Xfinity modem and that my brand new UCI modem (which is on the Next Gen compatibility list) would not work and that I should return it. I cannot return the modem.

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Contributor

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32 Messages

2 hours ago

Because that is the upload speed they support. Despite saying for years they were going to upgrade to things like "mid split" and "FDX DOCSIS 4" they still simply will not do it. Not to mention most of Comcast's network is fiber all the way to the subdivision or sometimes small neighborhood less than a mile from the CMTS. They want to spend as little money as possible and charge as much as they can. Instead of paying once in the 2007 timeframe when fiber was the big push or again in 2014 when going to DOCSIS3 and later DOCSIS3.1, they continue to want to shell out money to cable labs to support a standard that should have been eliminated. They are realizing the cost of their mistake now, and they still want to jam copper and DOCSIS down our throats.  

Visitor

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2 Messages

Glad I spent nearly $300 on a modem that I can't return...

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