Internet slow and eratic

Start here;

https://forums.xfinity.com/t5/Your-Home-Network/Internet-Troubleshooting-Tips/m-p/3310447#M316652

I don't know if your at bot or not....anyway....this has been going on for a long time and your suggested basic fixes have been done many times.  The problem is with the service not with the customer or the customers equipment.

you aren't alone ( I thought it was just me ) : that is exactly why I'm am looking at this site. My wifi/internet service is exactly how you described . I had a "technician " ( ya, right ) here on Thursday who assured me he had fixed everything ( after working for an hour and a half ) . My service today is worse than before he came. I really hate this company.

A technician came to my house a few days ago.  The internet is so bad, its unusable.  Can't even run netflix without buffering constantly.  I hear your pain.

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@Omsoft wrote:

I don't know if your at bot or not....anyway....this has been going on for a long time and your suggested basic fixes have been done many times.  The problem is with the service not with the customer or the customers equipment.

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O/k call 1800comcast a book another tech visit. Throw it right back into their laps. Good luck with it !

yep - I think at this point 4 in-person techs and probably 8 phone "helpers" 

it's just bad service

I looked at the video included on the link you sent.  Here is info from my modem. Based on the info in the video there is a problem because I shouldn't have so many "uncorrected". Please advise:

Actually, the uncorrected errors are pretty low ( depends on the total *uptime* of the modem since the last re-boot). And they are only on one channel.