Yesterday everything worked fine. But tonight, I'm unable to access particularly a few particular websites on all the imacs, mbp and even iphones at home. Weirdly enough, a quick 4G access via my iphones show the sites are accessible, but when i get back on the home network (via wifi / ethernet), it becomes unavailable with these errors:
ERR_NAME_NOT_RESOLVED
ERR_NETWORK_CHANGED
"...connection interrupted"
"This site can’t be reached.."
I've done all these tonight, but to no avail -- all on separate occasions on all imacs/mbp/iphone where possible:
cleared all cache, cookies and whatnots from google chrome..
updated osx to latest ElCapitan 10.11.6
restarted fibre modem, restarted router, restarted all computers/gadgets
tried sudo flushing my dns/mdns via terminal, but instead of receiving "say flushed" i got a "discoveryutil: command not found"
called the websites' web host techsupport and they're able to access the sites just fine.
& the best part about all this? Other websites work just fine. Only the few particular websites only. I'm bummed. Any pointers would be most grateful here.
IMHO, it's my router's DNS that's interrupting these few particular web addresses, but I am out of my wits to solve this. Heeeeeeelp~
Here's the particular site that can't be reached: (www.mtggoldfish.com)
host www.mtggoldfish.com
in Terminal? What abouttraceroute www.mtggoldfish.com
? Also to flush your DNS cache, issue the commandsudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder;say cache flushed
discoveryutil
isn't used from 10.4 onwards – Allan Nov 14 '16 at 16:07host
command doesn't use the same libraries that the system uses- it's better to usedig
to check DNS resolution. For exampledig @192.168.1.1 www.mtggoldfish.com
(or whatever your DNS server's IP Address is). – MacManager Nov 15 '16 at 15:48