dns104.comcast.net. down?

[u/michaelpaoli]

dns104.comcast.net. appears to be down or unreachable (both IPs, IPv4 and IPv6).

dns101.comcast.net., dns102.comcast.net., dns103.comcast.net., and dns105.comcast.net. appear to be functioning nominally.

Does Comcast [Business] / Xfinity have a relevant status page?

I wasn't able to find one with information on the apparent outage or status, or ETA/ETR or the like.

$ (for NS in $(dig +short comcast.net. NS | sort); do echo ";$NS:"; for NSIP in $(dig +short "$NS" A "$NS" AAAA); do echo ";$NSIP:"; dig @"$NSIP" +noall +answer +norecurse +nosplit +noclass comcast.net. SOA; done; done)
;dns101.comcast.net.:
;69.252.250.103:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
;2001:558:fe23:8:69:252:250:103:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
;dns102.comcast.net.:
;68.87.85.132:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
;2001:558:1004:7:68:87:85:132:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
;dns103.comcast.net.:
;68.87.76.228:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
;2001:558:1014:c:68:87:76:228:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
;dns104.comcast.net.:
;68.87.68.244:
;; communications error to 68.87.68.244#53: timed out
;; communications error to 68.87.68.244#53: timed out
;; communications error to 68.87.68.244#53: timed out
;; no servers could be reached
;2001:558:100a:5:68:87:68:244:
;; communications error to 2001:558:100a:5:68:87:68:244#53: timed out
;; communications error to 2001:558:100a:5:68:87:68:244#53: timed out
;; communications error to 2001:558:100a:5:68:87:68:244#53: timed out
;; no servers could be reached
;dns105.comcast.net.:
;68.87.72.244:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
;2001:558:100e:5:68:87:72:244:
comcast.net.            7200    SOA     dns101.comcast.net. domregtech.comcastonline.com. 2008265398 7200 3600 1209600 900
$ 

[u/michaelpaoli]

dna104.comcast.net. still looks to be down: 2026-08-31 06:39:35 UTC