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Forum Discussion
dlimanov
Jun 20, 2025Aspirant
CAX80 vs CBK752 for Xfinity
As title says, I’m in an unfortunate location where only Xfinity Internet is available with up to 1.2Gbps service being the highest offering. I currently run CAX30 with an EAX80 extender for our sing...
dlimanov
Jun 20, 2025Aspirant
I believe my Xfinity plan is for 1gbps service, but the real-world speed is always less than the advertised one.
No issues with other devices in the same room - i have an AppleTV that (i assume) connected to the same extender and there are no issues with streaming.
the only time we get problems with video quality is when both of our work laptops are on wireless, connected to the extender and are on video calls like Zoom.
plemans
Jun 20, 2025Guru - Experienced User
So you don't have issues if one laptop is connected to the CAX and one to the EAX?
Problem with single/dual band extenders is that they decrease throughput and increase latency. This happens because they have to use the same wireless chip to go router-----extender and then extender----devices. And they can't do both at once. So if you're having 2 devices do this, it could be enough latency to cause issues. I"d try moving the CAX to closer to the living room and getting rid of the extender.
Other devices like streaming won't have the same issue because they can buffer ahead. Live streaming like video calls can't do this. They're more sensitive to latency.
- dlimanovJun 20, 2025Aspirant
thank you, that makes sense. guess I need to run a coax into the living room to get rid of the extender. was hoping that satellite would do something different in that scenario and work better than the extender but i guess not. appreciate everyone’s help with this; you guys have been awesome!
- plemansJun 20, 2025Guru - Experienced User
You might not even need it ran to the living room. You say its 1300sq ft. Is that all one level?
Multilevel?
What are the interior walls made from? Simple sheetrock? Cement?
Are you making sure the laptops are on 5ghz? Check in their settings to see if they are. 2.4ghz is slow and sensitive to interference. In apartments, its almost pointless.
Instead of running coax, you can always try picking up a cheap 50ft ethernet cable (cheaper than coax) and hardwiring in the extender and using it in access point mode. When in AP mode, it'll perform with the same speed as the CAX directly connected.
- dlimanovJun 20, 2025Aspirant
single level, usual Sheetrock with crappy insulation in between rooms.
perhaps hard-wiring an extender is a better option, i do have a long CAT6 i can use. do i need to do anything special to convert the extender from “extending” mode and into AP?