Searched the forums for a similar issue, and couldn't find the same scenario.
First, the hardware:
- Motorola Surfboard SB6121 modem
- TP-Link Archer C9 Router
- Window 10 PC
- Various connected WiFi devices: 2 cell phones, 3 alexa's/dots, Sony Smart TV, Laptop, WiFi printer, Chromecast, PS4, Switch
Here's what's going on.
I live in my home with my wife and no kids. We stream a lot of videos but not very rarely simultaneously. Our internet is through Comcast/Xfinity on a 275Mbps dl connection. I've been with them for ~8 years and have had no previous issues. I purchased this modem/router combo 2 or 3 years back and they had been working great. My initial wired speed tests (Modem -> Router -> PC) showed DL speeds around 250Mbps. I don't recall performing tests with any of our WiFi devices, but I had no troubles with any of our usual activities, which again, is mostly watching Netflix/Hulu, or downloading a game on Steam or my PS4.
Lately I'd been noticing some significant slowdowns on mobile devices, so I ran a speed test. Was averaging ~12-15 Mbps on one test, and ~55Mbps on another. My upload speed was at 15Mbps on both, which is normal. I checked on the wired computer and it was much faster, although it still showed a significant slowdown ~120-130Mbps.
Things I've tried:
-Swapped between numerous ethernet cables, all cat 5e or 6. Have not noticed any differences.
-Connected the modem directly to the PC. No effect to the wired speed of ~120-130 Mbps.
-Updated the firmware on my router. No changes to either wired or WiFi speeds.
-Hard resets on both the modem and the router. Nothing
-Refreshed the signal to the modem through Comcast's site. Nada
Since my modem/router are owned, Comcast don't appear willing to be of much help. Does anyone have any guesses as to whether this is this more likely a service/Xfinity issue, a modem issue, a router issue, or some combination between these?
First, the hardware:
- Motorola Surfboard SB6121 modem
- TP-Link Archer C9 Router
- Window 10 PC
- Various connected WiFi devices: 2 cell phones, 3 alexa's/dots, Sony Smart TV, Laptop, WiFi printer, Chromecast, PS4, Switch
Here's what's going on.
I live in my home with my wife and no kids. We stream a lot of videos but not very rarely simultaneously. Our internet is through Comcast/Xfinity on a 275Mbps dl connection. I've been with them for ~8 years and have had no previous issues. I purchased this modem/router combo 2 or 3 years back and they had been working great. My initial wired speed tests (Modem -> Router -> PC) showed DL speeds around 250Mbps. I don't recall performing tests with any of our WiFi devices, but I had no troubles with any of our usual activities, which again, is mostly watching Netflix/Hulu, or downloading a game on Steam or my PS4.
Lately I'd been noticing some significant slowdowns on mobile devices, so I ran a speed test. Was averaging ~12-15 Mbps on one test, and ~55Mbps on another. My upload speed was at 15Mbps on both, which is normal. I checked on the wired computer and it was much faster, although it still showed a significant slowdown ~120-130Mbps.
Things I've tried:
-Swapped between numerous ethernet cables, all cat 5e or 6. Have not noticed any differences.
-Connected the modem directly to the PC. No effect to the wired speed of ~120-130 Mbps.
-Updated the firmware on my router. No changes to either wired or WiFi speeds.
-Hard resets on both the modem and the router. Nothing
-Refreshed the signal to the modem through Comcast's site. Nada
Since my modem/router are owned, Comcast don't appear willing to be of much help. Does anyone have any guesses as to whether this is this more likely a service/Xfinity issue, a modem issue, a router issue, or some combination between these?