topic Re: Unable to establish a connection to the specified secure gateway in DevNet Sandbox

Unable to establish a connection to the specified secure gateway

herewego — Mon, 14 Jun 2021 21:58:51 GMT

When I attempt to connect, I get 2 error messages:

AnyConnect was not able to establish a connection to the specified secure gateway. Please try connecting again.

The secure gateway has rejected the connection attempt. A new connection attempt to the same or another secure gateway is needed, which requires re-authentication.

Re: Unable to establish a connection to the specified secure gateway

balaji.bandi — Tue, 15 Jun 2021 09:31:44 GMT

Just need more information, is this working before or you getting this error frequnetly.

May reasons :

AnyConnect was not able to establish a connection to the specified secure gateway. Please try connecting again.

- this may be due to connection issue

- configuraiton wrong

- any Antivirus updates could blocking.

Re: Unable to establish a connection to the specified secure gateway

herewego — Tue, 15 Jun 2021 09:49:10 GMT

I have a feeling it's antivirus or a firewall or something because I also
had issues downloading the software. I tried to disable my firewall, but it
still is not working. This is my first time trying to connect.

Here is my log:
12:40:07 AM Establishing VPN session...
12:40:07 AM Disconnect in progress, please wait...
12:40:07 AM Connection attempt has failed.
12:40:08 AM Ready to connect.
12:54:44 AM Contacting chicago.vpn... [took out for privacy]
12:55:11 AM User credentials entered.
12:55:14 AM Establishing VPN session...
12:55:15 AM The AnyConnect Downloader is performing update checks...
12:55:15 AM Checking for profile updates...
12:55:15 AM Checking for product updates...
12:55:15 AM Checking for customization updates...
12:55:15 AM Performing any required updates...
12:55:15 AM The AnyConnect Downloader updates have been completed.
12:55:15 AM Establishing VPN - Initiating connection...
12:55:15 AM Establishing VPN session...
12:55:16 AM Disconnect in progress, please wait...
12:55:16 AM Connection attempt has failed.
12:55:16 AM Ready to connect.

Re: Unable to establish a connection to the specified secure gateway

bigevilbeard — Tue, 15 Jun 2021 10:38:49 GMT

Check the ports are not being blocked. The range is anywhere between 20100 and 20354. However, this number will likely grow in the future.

Hope this helps.

Re: Unable to establish a connection to the specified secure gateway

balaji.bandi — Tue, 15 Jun 2021 12:02:08 GMT

So you try to connect from Home to your Office ?

Try different DSL connection if you can prove ISP not blocking ?