Sudden drop in speed since 06/26/2024

Hello @user_prdwyg, thank you for taking the time to reach out on social media.  I understand your concern with the speeds, and I'd like the opportunity to check into that for you.

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@user_prdwyg @XfinityKrista 

Please circle back here and post any possible solutions for the issue here in these open public forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.

OP, did a tech come out to investigate? Where are you located? I'm having a suspiciously similar issue. I live near Boston and upgraded to the 1200mbit plan in May because that was the only special price running at the time I had to renew. I have a Plume mesh system which auto checks my ISP speed daily. For years I've consistently gotten 500+ Mbps on lower plans. And for most of June it was around 570 (I have an SB6183 modem so I can't get full benefit of my plan but I don't care). Starting on June 24th the speed dropped to about 90-95mbps every day. Four days ago on July 14 I had a long tech support chat with an Xfinity agent who sent a booster signal to my modem,  I power cycled my modem and router, and my speeds return to 570+. Then starting yesterday they're back to 90 or so. Very frustrating!! I'm curious to learn about any solutions you've found. I'm going to try to get more support and will share back anything useful.

Update: I worked with Xfinity support after receiving a response to this post. After 2 hours of chatting online, the result was no indication of network changes, several temporary service interruptions due to a faulty power supply in the area (but this would have impacted more than slower speed) and remote tests looked good (signal into the home looked strong, packet loss and T3/T4 timeouts had no significant activity). A remote gateway refresh was completed and with no improvement a tech visit was scheduled.

I should note prior to the tech visit, I logged onto the router/gateway through the 10.0.0.1 ip address. Once there, I went to Troubleshooting -> Reset/Restore Gateway -> “Reset Wi-Fi Router,” and once that completed, I went back in and did a “Reset.” Once these steps were completed, I returned to typical down/up speeds of 900+/38+.

I kept the service appt. anyway to make sure there was not another issue. The tech visited and tested all cable lines, starting inside, then at the connection to the house, and then at the node in the back yard. He also replaced the modem/router (B8 replaced with B8). I have had consistent speed tests since the visit (appx. 3 weeks ago).

Ultimately, I concluded logging onto the gateway through a web browser and resetting the Wi-Fi router in two different ways seems to resolve the issue. Using the Xfinity app on my phone did not produce the same fix.

@Granite24 I am located in northern Colorado outside Fort Collins.

@user_prdwyg 

Thanks for the update ! Hope things hold up for you ! Good luck !