ISP's DHCP is not functioning properly - ASUS router

[adriannal1990]

Hello,

I am experiencing constant disconnections at a rate of about 50 per day, each lasting about a minute. The status log on the ASUS router says ISP's DHCP is not functioning properly. I have contacted xfinity before but they have refused to send anyone out to check on my network. I am confident the problem is with xfinity and not with my router or modem.

[EG]

First. 

Is this with a WiFi connection ? If so, for a test, does a computer / device hardwired directly to the router / gateway device with an ethernet cable have the same problem ?

With this test, we are trying to isolate this from being either a WiFi-only problem or a problem with the general connection to the Comcast system which would of course affect both. It's a good first step of troubleshooting before we proceed any further.