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cada0310
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Thursday, April 2nd, 2026 1:30 AM

Main TV box has been slow for ages; smaller satellite box super fast

Hello, 

As described in the title, our main box is terribly slow all around (normal use , streaming services, on demand). We've replaced it a few times in the last year but it's never even close to as fast as the little box in the other room.

I'd like a technician to come and test the signal to that main box and troubleshoot the issue once and for all.

Any other advice also appreciated.

Thanks.

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2 hours ago

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XfinityDilary

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19 hours ago

Thank you for posting on our community forums, cada0310. I’m sincerely sorry to hear about the connectivity issues you’ve been experiencing with your TV box. This is not the service we aim to provide, and we'd like to help troubleshoot. Did you already try rebooting the TV box manually or through the Xfinity App? Did you check the coaxial connection on both ends (wall plate and TV box) to make sure the connection is tight and there's no damage to it? 

 

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cada0310

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Hi there, 

Yes, I've done all the troubleshooting steps recommended. 

Thanks. 

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12 hours ago

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XfinityOrlandoM

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Thanks for clarifying, On the TV box that you're having the issues with is that connected directly to the coax outlet on the wall or does that connection go through a splitter?

 

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12 hours ago

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cada0310

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9 hours ago

There are splitters at the point of entry to the house, installed by Comcast. Both the slow box and the fast box are on splits.

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cada0310

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6 hours ago

Ok, I did that.  Let me know how the levels check goes. 

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XfinityGabriel

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cada0310, No problem. I have the account pulled up. While looking over the signals, I noticed how awesome you are for your 17-year loyalty! Friendly reminder to keep checking out our membership program here, as offers update monthly. You’ll be eligible for rewards such as movie nights, early access to games, Xfinity products, discounts, family activities, sweepstakes, tickets, gift cards, and more! If you love movies like my household, right now members can get $5 off a Fandango Movie Ticket to see The Super Mario Galaxy Movie.😀

 

After reviewing the signal levels to your video equipment, everything is currently within specification. I also checked for any known issues in your area and can confirm there are no reported interruptions at this time. When you notice the slowdown on the main cable box, do you see any specific error messages or error codes? Additionally, are you experiencing slow internet performance when streaming on other connected devices, such as mobile phones or tablets?

 

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5 hours ago

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cada0310

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Hi there,

No, we don't see error codes - it's just that everything is so sluggish on that TV all the time.  It's not periodic, it's all the time just navigating menus and pulling up content is slow always on that TV, compared to the other one which is very responsive.

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5 hours ago

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XfinityGabriel

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3.1K Messages

 

cada0310, Thanks for sharing these details. That's very helpful. When you say the experience is slow or sluggish on that TV, are you also seeing things like frequent buffering or pixelation, or is it mainly delays when navigating menus and loading content?

 

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4 hours ago

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cada0310

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Not pixelation or buffering (other than sometimes buffering at the start of loading a new show).  It's mainly navigating menus and loading show thumbnails, in comcasts native content as well as 3rd party apps.

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4 hours ago

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XfinityJorge

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Gotcha, have you noticed if this occurs more during certain times of the day? We are here to work through this and thanks for the chance to help. 

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4 hours ago

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