My 2TB TimeCapsule will NOT finish backup
I bought a new 2TB Apple Time Capsule Feb 27 because my TC from 2015 "died". I am in a rental house due to Hurricane Harvey and have Xfinify Comcast as my ISP. I have been trying to back up my Macbook (running "High Sierra 10.13) since Feb 27th and it never finishes. Last night, it actually failed in front of my eyes. Our wifi must have gone out for a minute because Apple TV stopped working and at the same time the TimeCapsule backup stopped. Could this be I have a weak router? Can I use a USB to USB cable to hardwire my laptop to the Time Capsule to back up? Hopefully when we move home next month we will have better internet and wifi connectivity. I have spoken with 4 Apple support people-the most recent being "Angie" a senior support manager who gave me her direct line--only to find out the phone number extension is not recognized. Great. Can anyone help me? Thanks!
MacBook Pro with Retina display, OS X Mountain Lion (10.8.4)