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Not Getting Full Upload Speed

I'm not sure what to do, I just signed up with Xfinity for the 1GB plan after entering my home address - I really was thrilled to see they had a plan that fit my needs really well. However, now that I've had it for a few days, I'm seeing issue, and experiencing disapointment. This is the speedtest I

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I'm beyond frustrated with the worthless virtual assistant. I'm looking into other wifi providers. I can't live with the VA and no humans.

YOUR VIRTUAL "ASSISTANT" (I use that term VERY loosely)is the exact OPPOSITE of helpful. I'm almost in tears. I wish I could copy the foot and a half long chat so I could prove how unhelpful it is. How FRUSTRATING it is. HOW MADDENING it is. How much it makes me WISH I had any other service besides

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I've restarted the cable modem. An initial speedtest from the machine directly plugged into the modem shows no real change. It was 160 Mbps. Looking at the downstream channels it looks somewhat better. The power is between 2 and 6 and only one chann

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1 GB plan very slow

I upgraded to the 1 GB plan a while ago but I've never gotten above 300 BG download. The average for the past seven days is just under 97 GBs (as tested with speedtest-cli every 15 minutes). The tests are run over ethernet, not wireless. It's wires all the way. When I run the test from the gateway i

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@PAJoeS, is that over WiFi?? If it is, then that’s still pretty decent speeds. But not so good if that’s over Ethernet, did you already try a hard reset?For anyone reading this, you can easily hard reset this modem by using a paper clip, use it to pu

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Re: cable modem t25

Looks like they finally updated the firmware on the T25 Arris modem.... I haven't had any disconnects recently but I'm also not going to celeberate just yet since it seems to happen about every 11 days and I'm not sure when this firmware version was pushed. Last time I checked my modems settings/fir

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why are my internet speeds lower

I got an e-mail from Xfinity that they increased my internet speed for free. I have 1Gb service on an internal 10Gb network. Xfinity over provisions so I have been getting 1.2Gb down and 20Mb up consistently for some time. I did a Speedtest and my speeds increased to 1.3Gb down and 40Mb up. I checke

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Internet Issues

I'm having the same issues as the post noted below: https://forums.xfinity.com/conversations/customer-service/maintenance-crew-wont-fix-the-main-line-to-my-neighborhood/66a9710359bf556396a16384 I have had 3 technicians come to my house. Great techs who have tried hard, but my issues have yet to be r

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Intermittent Wi-Fi speeds - dramatic slowdowns

My Wi-Fi connection speeds vary throughout the day from over 800Mps to less than 2Mbps on devices that are stationary throughout the house. All Wi-Fi connections register as "Strong" on the app even though the speedtest results are VERY weak. The Wi-Fi bandwidth just disappears. The Xfinity network

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Actually, I want to take responsibility for my mistake on this. When I installed the new sound system I used a new cable and added some right-angle joints to take pressure off the cable connections, which should have made everything more reliable. To

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SOUND CUTTING OUT

The sound is cutting out on basically every channel, we only have one tv and one cable box directly next to our wifi modem. When the tech came and tested all our equipment he said everything is ok but it is still happening, it makes you not even want to watch tv sometimes because you can never catch

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Whoa, that was easy! Perhaps obvious to those more experienced than me, but here is what I did: 1) Unplugged the Motorola and plugged in an older Arris SURFboard SB6141 that the Motorola had replaced 2) Turned off WiFi on my phone 3) Used the X

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Motorola MB8611 modem keeps restarting - firmware issue

I have owned my own Motorola MB8611 cable modem since September 2022, and since the middle of December 2022 it has been restarting multiple times per day. After a lot of troubleshooting, I figured out that it is related to the firmware, aka software. With Firmware 8611-19.2.20 it is stable, but then

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You appear to be connecting to garbage WiFi networks, so the problem is not XM and its cellular internet connectivity. When your phone shows the WiFi symbol you are no longer using XM LTE/5G/5G+ cellular data/internet connectivity. The answer is to

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3 years ago

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Garbage

​​Most of the time I have full bars 5G and 5G+. Try to access anything on data just horrible. All I get is no internet connection, no internet, cannot connect and unstable network. Xfinity has to be the worst service I’ve ever had.. Just give me the run around. And all they can do is give me the sam

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No surprise, happened again.  3:32am in the logs (so different than the last 2 nights).  Speedtest this morning and back at 550Mbps.  Factory reset the modem, change password, set to bridge mode and now it will only offer up a 10. IP (i.e., it isn't

 commented 

5 years ago

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Gigabit Speed Issues - Don't Accept "The network is congested"

I have had ongoing issues with maintain gigabit speed. Multiple trips by techs etc and replacing modems, cabling and actually removing an amplifier. The one common thread seems to have been related to provisioning. When I lose gig speed I drop down to what appears extreme+ and downstream pegs right

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Thanks for the additional info.I had a 2nd tech out.  He found a crack in the line's casing where water had been leaking in and causing corrosion.  Replaced the whole run from my house to the pole.  Said he'd reprovision my modem as well and my issue

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DOCSIS 3.1 Modem not provisioned correctly (DOCSIS 3.0 QAM 256 Channels vs DOCSIS 3.1 / OFDM)

High level issue: Was having internet issues. Comcast support said my old SB6121 "is not supported" and was the issue. Didn't beleive them, but after 10 years of use, I've got my money's worth. Wasn't able to get my full 200Mbps Blast speed anyways. So, I order a new DOCSIS 3.1 modem and got talked

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xFi Complete, Gigabit, and Mid-Split

I've been a long time subscriber to the Gigabit plan, which has a 20 mbit upload (and around 800 mbit download), using an Arris S33. I recently received emails and texts saying that my speeds had increased, but that I may need to restart my modem to get them. I assumed (maybe mistakenly) that this m

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Issues with Audio/Video Conferencing on Xfinity Internet connection

Hello. Video conferencing on our home network is effectively unusable. Video and audio freeze several times per minute. Each freeze lasts 3 to 8 seconds. We see this with Zoom, MS Teams, Skype, Cisco Webex applications, etc. This behavior doesn’t change whether using WiFi or a wired connection to th

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Why is new Motorola MB8611 is providing lower upload than the old MB8600?

I'm on the 1.2G plan and to get the full benefits I updated my modem from Motorola MB8600 to MB8611. My Ubiqity UDM-Pro doesn't allow for LAG, but for up to 10G on the WAN ports. Now, the MB8611 is showing the 2.5G link to the UDM-PRO and the Internet connection is established. Download ~714Mbps but

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@fischershaw Hello and thank you for reaching out to us via our Xfinity Community Forums! I am so sorry to hear about the trouble with your internet speeds as well as with reaching an Xfinity representative. You are in the right place, and we are

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Basic loss of download speed

There appears to be no actual way to contact xfinity any longer. Came home from vacation to find download speed is 1/10 of what it should be. Many restarts of all equipment. Direct connection to modem speed is severely degraded. In the past there has been a problem at the junction box up the drivewa

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What's with these speeds?

I'm experiencing consistently poor internet performance despite being on a 2.5 Gbps plan. I've verified my internal network is capable of 2.5 Gbps with local iperf3 tests, and I'm directly connected via a wired 2.5G Switch. I've inspected status and settings and all internal connections are reportin

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Download speed limited to 300 Mbps on 1.2gig plan . Throttling ?

I have been working on setting up a standalone pfSense router, with my XB7 in bridge mode. I check the speed frequently with Ookla speedtest, native windows app. My LAN is 10 GBASE-T. I normally get a little over 1400 Mbps download speed. However, recently, speed has been dropping to 300 Mbps in the

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WAN aggregation w/Arris T25 and ASUS Router

I just set up a new ASUS RT-AX88U wireless router, which happens to support WAN link aggregation (and dual WAN as well). I'm using an Arris T25 eMTA and have 1.2 Gbps internet service. The fastest speed I've ever had up til now (via Speedtest) is 946 Mbps down/42 Mbps up. I read up a bit on this and

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Gaming Lag and Browsing Hesitation

For the past several months I've noticed several obvious changes to my direct wired internet connection, gaming lag and a hesitation when using the browser. There have been no changes on my end to trigger these two issues. I've followed every suggested fix through the online assistant as well as pow

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