Wi-Fi Speed drop or complete failure at the same time every night.

I sure have - we reset the modem several times per week and the app always says there are no outages in our area.  The slowdowns are like clockwork here.  I always know it’s bedtime when my WiFi slows down to 10% of normal.  

Thanks! @user_ztpo1v does rebooting fix the speed? Does this happen on Wifi only, or also on hardwired connections? 

Rebooting is a temporary fix and we have no hard wired devices.  An XFinity tech camera and helped enormously with a cable replacement and router upgrade. This seems to have fixed most of the daytime issues and sporadic speed drops - however, the evening slump persists.  Is the network just under too much demand at those times?  Rather odd to see this issue persist after most of the others seem to be resolved.  

That is possible, but our technicians work 24/7, 365 to monitor the network and make any needed repairs or improvements, @user_ztpo1v. I would like to take a look at the area as well as your signal levels to see if that will give us further insight into the root cause of this.

@user_ztpo1v

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