[SOLVED] Why am I unable to connect to some websites via HTTP:

Sep 29, 2019
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The question sounds ignorant, but bear with me:

My initial issue was that Epic Games Launcher could not get a connection to it's backing service. Being EGL, it provided zero information as to the cause, but that's what Wireshark is for.

Wireshark provided two salient bits of information:
1) the server was resetting the connection (immediately).
2) EGL was connecting via HTTP.

Subsequent investigation determined that:
1) Using (Chrome/Firefox) I cannot connect to the relevant website (download.epicgames.com) via HTTP, but I can connect without issue via HTTPS.

2) No other device in my houshold (an iPhone 6, an Amazon Fire tablet, an IPad Pro) has this issue; all can connect to this site via HTTP.

3) The devices that can connect are all on wi-fi; the problem device (custom build running Windows 7 Pro) is wired.

4) Disabling anti-virus/firewall does not help. Resetting winsock does not help. Rebooting the router and modem does not help. I do not have a proxy.

5) nmap -p 80 download.epicgames.com shows the port is open.

6) I have found several other websites that give me the same behavior, including tomshardware.com, ironically.

That's what I know, and a list of things I've tried. At this point, I am out of ideas and looking for help. Here is an ipconfig /all dump:

Windows IP Configuration

Host Name . . . . . . . . . . . . : Spartan
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : example.com

Ethernet adapter Local Area Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP Adapter OAS NDIS 6.0
Physical Address. . . . . . . . . : 00-FF-44-5A-D3-24
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : lan1
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : BC-5F-F4-5A-1F-B0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2605:6000:1023:6141::48c(Preferred)
Lease Obtained. . . . . . . . . . : Saturday, September 28, 2019 9:15:39 PM
Lease Expires . . . . . . . . . . : Saturday, October 05, 2019 6:53:55 PM
IPv6 Address. . . . . . . . . . . : 2605:6000:1023:6141:d010:ff5:5973:6309(Preferred)
Temporary IPv6 Address. . . . . . : 2605:6000:1023:6141:dc50:f244:4d5c:c518(Preferred)
Link-local IPv6 Address . . . . . : fe80::d010:ff5:5973:6309%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.140(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Saturday, September 28, 2019 9:15:37 PM
Lease Expires . . . . . . . . . . : Saturday, October 05, 2019 9:15:43 PM
Default Gateway . . . . . . . . . : fe80::1eb0:44ff:fe1a:f85d%10
192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 347889652
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-89-B6-FA-BC-5F-F4-5A-1F-B0
DNS Servers . . . . . . . . . . . : 2000::ff
2000::fe
8.8.8.8
8.8.4.4
NetBIOS over Tcpip. . . . . . . . : Enabled
Connection-specific DNS Suffix Search List :
example.com

Ethernet adapter VirtualBox Host-Only Network:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter
Physical Address. . . . . . . . . : 0A-00-27-00-00-11
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::20b0:3cf8:2e1f:d80c%17(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.216.12(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 436863015
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-89-B6-FA-BC-5F-F4-5A-1F-B0
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.lan1:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : lan1
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{83C2F747-DDC8-4420-8797-3F25D1BD8216}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{445AD324-4C16-4E15-8B03-999A3ACF2E37}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
 

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