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Forum Discussion
sfinn
Jun 14, 2022Guide
X6S Mesh Extender/C7800 keep disconnecting
I've a C7800 provisioned by xfinity and an EX8000 extender (firmware v1.0.1.240) extender. They are (almost) line-of-sign through a doorway. The EX8000 disconnects from the C7800 at least once daily,...
sfinn
Jun 17, 2022Guide
Thanks - I'll give this a try and report back.
Quick question: can you explain your thinking on the recommendation to disable the "extend 2.4 GHz network"?
plemans
Jun 17, 2022Guru - Experienced User
Reason I say uncheck that is the EX can use the 2.4ghz as failover for the 5ghz. So if there's issues with the 5ghz, it'll use the 2.4ghz. Problem is that the 2.4ghz is incredibly slow and significantly increases ping times. In my experience, its better to disable the 2.4ghz failover and find a stable 5ghz channel for the backhaul and just stick with that.
- sfinnJun 20, 2022Guide
Regrettably I'm still getting the disconnects. There doesn't seem to be any change in frequency of occurrence or any other symptomology. Nothing is apparent in the router log files. (If there are log files on the extender I don't know how to access them.)
- plemansJun 21, 2022Guru - Experienced User
Do you have a screen snip of the extenders status page?
- sfinnJun 22, 2022Guide
Screenshot of status page attached.
Thanks much for your continued help with this: I do appreciate it.
- plemansJun 22, 2022Guru - Experienced User
Your status page looks pretty spot on.
the only other thing I'd try would be to set the router with the lower 36-44 channels so the extender is using it as backhaul.
- plemansJun 22, 2022Guru - Experienced User
are you sure there isn't any issue when only the router is running? you've tested it with just the router?
- sfinnJun 22, 2022Guide
I've not had any router problems. Currently I have the extender set to provide its own network, and leave the router to provide its own wifi network. When the extender drops out I can still access the wifi provided by the router.
Not sure whether it is relevant here, but - as mentioned earlier - when the extender "disconnects" its status lights don't reflect any problems: i.e., they are all bright white. The only way I've found to get the extender to reconnect to the router is to reboot/power-cycle the extender.