(In reply to rex from comment #13) > Created attachment 9034842 > log.txt-main.9860 > > Aha! I started the log right before attempting to connect to CNN.com, > received the "can't connect to the server" page, and stopped logging.
Thank you. Looks like your local resolver has an issue: ``` 2019-01-07 22:07:23.681 ⁃ nsHttpChannel ⁃ 7f7450f0a800 ⁃ finished ⁃ status=804b001e ⁃ http-status=n/a ⁃ url=https://www.cnn.com/ 2019-01-07 22:07:23.691 ⁃ nsSocketTransport ⁃ 7f74521a4c00 ⁃ released ⁃ origin=www.cnn.com:443 2019-01-07 22:07:23.691473 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport creating nsSocketTransport @0x7f74521a4c00 2019-01-07 22:07:23.691482 UTC - [Parent 9860: Socket Thread]: E/nsSocketTransport nsSocketTransport::Init [this=0x7f74521a4c00 host=www.cnn.com:443 origin=www.cnn.com:443 proxy=:0] 2019-01-07 22:07:23.691500 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::SetConnectionFlags 0x7f74521a4c00 flags=0 flags = 0 2019-01-07 22:07:23.691525 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::OpenOutputStream [this=0x7f74521a4c00 flags=2] 2019-01-07 22:07:23.691533 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::PostEvent [this=0x7f74521a4c00 type=0 status=0 param=(nil)] 2019-01-07 22:07:23.691557 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::OpenInputStream [this=0x7f74521a4c00 flags=2] 2019-01-07 22:07:23.691565 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::PostEvent [this=0x7f74521a4c00 type=0 status=0 param=(nil)] nsHalfOpenSocket @7f7454d67ae0 --> nsSocketTransport @7f74521a4c00 2019-01-07 22:07:23.692309 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::OnSocketEvent [this=0x7f74521a4c00 type=0 status=0 param=(nil)] 2019-01-07 22:07:23.692324 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::ResolveHost [this=0x7f74521a4c00 www.cnn.com:443] 2019-01-07 22:07:23.692335 UTC - [Parent 9860: Socket Thread]: E/nsSocketTransport nsSocketTransport::SendStatus [this=0x7f74521a4c00 status=804b0003] 804b0003 = STATUS_RESOLVING 2019-01-07 22:07:23.692 ⁃ nsHostResolver ⁃ log.txt-main!nsHostResolver::service ⁃ service 2019-01-07 22:07:23.692387 UTC - [Parent 9860: Socket Thread]: D/nsHostResolver Resolving host [www.cnn.com] type 0. [this=0x7f748678ceb0] 2019-01-07 22:07:23.692414 UTC - [Parent 9860: Socket Thread]: D/nsHostResolver No usable record in cache for host [www.cnn.com] type 0. 2019-01-07 22:07:23.692460 UTC - [Parent 9860: Socket Thread]: D/nsHostResolver DNS thread counters: total=2 any-live=0 idle=2 pending=1 2019-01-07 22:07:23.692484 UTC - [Parent 9860: Socket Thread]: D/nsHostResolver DNS lookup for host [www.cnn.com] blocking pending 'getaddrinfo' or trr query: callback [0x7f7454e6b700] 2019-01-07 22:07:23.692506 UTC - [Parent 9860: DNS Resolver #2]: E/nsHostResolver DNS lookup thread - Calling getaddrinfo for host [www.cnn.com]. 2019-01-07 22:07:23.692511 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::OnSocketEvent [this=0x7f74521a4c00 type=0 status=0 param=(nil)] 2019-01-07 22:07:23.692641 UTC - [Parent 9860: DNS Resolver #2]: D/nsHostResolver Calling 'res_ninit'. 2019-01-07 22:07:23.692738 UTC - [Parent 9860: DNS Resolver #2]: E/nsHostResolver DNS lookup thread - lookup completed for host [www.cnn.com]: failure: unknown host. 2019-01-07 22:07:23.692771 UTC - [Parent 9860: DNS Resolver #2]: D/nsHostResolver nsHostResolver::CompleteLookup www.cnn.com (nil) 804B001E trr=0 stillResolving=0 2019-01-07 22:07:23.692822 UTC - [Parent 9860: DNS Resolver #2]: D/nsHostResolver nsHostResolver record 0x7f7466ac4580 new gencnt 2019-01-07 22:07:23.692849 UTC - [Parent 9860: DNS Resolver #2]: D/nsHostResolver Caching host [www.cnn.com] negative record for 60 seconds. 2019-01-07 22:07:23.692903 UTC - [Parent 9860: DNS Resolver #2]: D/nsHostResolver CompleteLookup: www.cnn.com has NO address 2019-01-07 22:07:23.692939 UTC - [Parent 9860: DNS Resolver #2]: D/nsHostResolver nsHostResolver record 0x7f7466ac4580 calling back dns users 2019-01-07 22:07:23.693519 UTC - [Parent 9860: Socket Thread]: D/nsSocketTransport nsSocketTransport::OnLookupComplete: this=0x7f74521a4c00 status 804b001e. ``` I can see "DNS lookup thread - lookup completed for host [www.cnn.com]: failure: unknown host." from the call to getaddrinfo, which is even called twice (getaddrinfo, res_ninit, getaddrinfo). If you open a terminal (command prompt) and do `nslookup www.cnn.com` what result do you get? What exactly is your local DNS setting? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796979 Title: Intermittently can't connect to the server To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1796979/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs