Can't access specific site on Comcast, but can on ATT / Verizon / TimeWarner
I'm trying to access a specific website but for a few days at a time, I can't connect to it. I've verified this site is online & functioning propertly... to me there's an issue within comcast's network where a router is simply dropping the request. I've done a trace route and see it making it pretty far but after 10 or 11 hops, it times out. However when I switch to my Verizon jetpack / mifi device, I can hit the site (and doing a tracert to the site makes it the whole way)... same is true on AT&T.
I've verified I'm resolving to the correct IP for the site & it's the same IP when I do a NSLOOKUP against it from various devices on various networks (also confirmed with a registar's WHOIS tools).
The site works just fine for a while, then is unreachable for a few days. As you can see above, I've isolated it to the fact it's a comcast network issue. I can't find a way to call and get passed the first level support as I've clearly done my homework, nor can I find a way to issue a ticket. Does anyone have any suggestions?
This isn't a trivial site: it's to enter parents into a background check system for a public school system in the fastest growing community in Florida.