1)Connection timed out / Failed to obtain WebVPN cookie-Using openconnect 2)Anyconnect Linux is where???

[worldwide1]

:~$ sudo openconnect --version
OpenConnect version v8.05-1
Using GnuTLS. Features present: TPMv2, PKCS#11, RSA software token, HOTP software token, TOTP software token, Yubikey OATH, System keys, DTLS, ESP
Supported protocols: anyconnect (default), nc, gp, pulse
:~$ sudo openconnect -v devnetsandbox-usw1-reservation.cisco.com:20149
POST https://devnetsandbox-usw1-reservation.cisco.com:20149/
Attempting to connect to server 131.226.217.48:20149
Failed to connect to 131.226.217.48:20149: Connection timed out
Failed to connect to host devnetsandbox-usw1-reservation.cisco.com
Failed to open HTTPS connection to devnetsandbox-usw1-reservation.cisco.com
Failed to obtain WebVPN cookie

Openconnect didn't work using the GUI either

Where's (see pic) Anyconnect for Linux - if necessary?

[worldwide1]

Failed to establish PC/SC context: Service not available.
POST https://devnetsandbox-usw1-reservation.cisco.com:20131/
Attempting to connect to server 131.226.217.48:20131
Socket connect canceled
Failed to connect to 131.226.217.48:20131: Interrupted system call
Failed to connect to host devnetsandbox-usw1-reservation.cisco.com
Failed to open HTTPS connection to devnetsandbox-usw1-reservation.cisco.com
POST https://devnetsandbox-usw1-reservation.cisco.com:20131/
Attempting to connect to server 131.226.217.48:20131

[worldwide1]

It's not me...dig works

~$ sudo openconnect -v devnetsandbox-usw1-reservation.cisco.com:20131

POST https://devnetsandbox-usw1-reservation.cisco.com:20131/
Attempting to connect to server 131.226.217.48:20131
Failed to connect to 131.226.217.48:20131: Connection timed out
Failed to connect to host devnetsandbox-usw1-reservation.cisco.com
Failed to open HTTPS connection to devnetsandbox-usw1-reservation.cisco.com
Failed to obtain WebVPN cookie

~$ dig 131.226.217.48

; <<>> DiG 9.16.1-Ubuntu <<>> 131.226.217.48
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 3641
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;131.226.217.48. IN A

;; Query time: 2772 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sun Feb 14 07:05:10 PST 2021
;; MSG SIZE rcvd: 43

[worldwide1]

The attached screenshots include the anyconnect version, firewall settings (all off) and the anyconnect adapter displaying the "unplugged".

The other anyconnect adapter status is disabled and you have to enable it and that results in the unplugged status.

Again this is a windows 10 vm on a Linux host and the the vm assumes the state of the host and the adapter is bridged. (see pic)

I hope this helps but I'd rather have an Openconnect solution because, again, this a 127GB anyconnect solution that wont do.

[worldwide1]

All of the above still applies but THIS time I am on the win10 vm. 

[bigevilbeard]

Please post this question over at https://community.cisco.com/t5/devnet-sandbox/bd-p/4426j-disc-dev-devnet-sandbox - this room has the devnet sandbox engineering team monitoring. You can also post the questions in thee Webex space for devnet support here --> https://developer.cisco.com/site/devnet-chat/

Hope this helps!