Xfinity wakeup call to address lack of multiple ODFM channel bonding no technical skills to fix high correctables/uncorrectables

Most Gig plus COAX subscribers are not network engineers and 99% of Xfinity support and Xfinity in home techs don't know what TCPIP is or what is ODFM, the difference between DOCSIS 3.1E, ULTRAID, PLUS, FLEX vs -->  legacy "DOCSIS 3.1".   

Xfinity uses call centers in OVERSEAS support are script readers and untrained if you can even reach them due to AI phone call voice response units blocking talking to a human.   

An Xfinity subscriber has no practical access to anyone local in market to talk help fix these provisioning problems.  The Xfinity (truck) line repair technicians are trained but a subscriber has to step outside and find and talk to a senior Xfinity grey beard. Learn from them why your line is slow extra slow full of errors.  Let them explain how factors like UHF/VHF OTA Television creates problems to the buried coax wiring, remove all splices and couplers, tighten all connections, replace aged out last mile RG59 COAX that is the (wrong frequency impedance wire), get your in home wiring in oroder, get a high speed 10G/2.5 Mgig switch.  

• Comcast Xfinity is selling what they do not deliver. 
• Local cities select COMCAST for last mile and award them a monopoly and this makes Xfinity apathetic.

The lack of multiple ODFM downstream channel BONDING slows down the internet speed of your connection.  This is not being properly provisioned as hardcoded Xfinity problem with Xfinity CTMS handshake in last mile to CPE.  

The nature of multiple ODFM sub-channel bonding was designed for the auto-optimize your signal to hop to favorable sub-channel frequencies with less errors and uncorrectable(s) and correctable(s).  

• Xfinity hardware ODFM (under) provisioning of CPE subscriber creating permanent deployment problems
• The CPE modems have no internal cooling fan, and this causes rapid modem mainboard heating and circuit cooking itself impacting the errors. 
• CTMS creating high errors on wet and hot days vs less on cooled and dry days due to last mile water in 40-year-old coax RG11 and RG6
• On COAX: CTMS not provisioning HIGH SPLIT DOCSIS 3.1E, UltraID, 3.1Flex, 3.1Plus protocols ( no multichannel ODFM )
• Gig customers get low split slow connections but pay full price, the Speed Test is half or less of the paid subscription. When everyone comes off work at night the speed is crippled to 100mbps due to last mile oversubscription saturation.  

Contributing factors an Xfinity subscriber has control over to help speed up connection: 

1. Select a Netgear CM3000 (2.5Mgig) or Arris Surfboard HIGH SPLIT DOCSYS 3.1E (10GbE) or Hitron 54 (MGig) 
2. In home use 2.5 MGig Hardwired NICS to 10G or 2.5MGig switch with CAT6A STP in home to your PC, laptop, HDTVs 
3. Open support cases to get Xfinity to remove all splicers and couplers in home and in the patch to your modem
4. Open support tickets with modem vendor to optimize the setup as best as possible, their level 2 can teach you where to look for problems. 

EXEC SUM: Overall, the root cause of low internet speeds is Xfinity CTMS ODFM last mile lack of multiple channel provisioning.  No one understands who and what controls provisioning inside Xfinity itself, no one to speak too to capture this problem for years.