topic Re: "Failed to reach server [...] Security settings denies access" in QlikView

"Failed to reach server [...] Security settings denies access"

Mon, 26 Jan 2026 18:19:17 GMT

Hello all,

I'm at a loss here to what I can attribute this error. When one of my users tries to connect to the QV server with the qlikview desktop application he receives the error:

Failed to reach server: [server name]

Switching to HTTP tunneling

Connected to server OK, Security settings denies access

The user just got a NAMED cal but needs to connect to the server to get the lease. He has windows access to all files on the server. He also connects straight from the network so no VPN in between. I have at least 50 other users connecting to the server like this without any problems.

Any ideas?

Thx

Mathias

Re: "Failed to reach server [...] Security settings denies access"

jerrysvensson — Thu, 05 Dec 2013 11:06:06 GMT

If possible, install telnet on his/hers machine and try telnet <qvs server> 4747 to make sure nothing is blocking the port.

Re: "Failed to reach server [...] Security settings denies access"

Bill_Britt — Thu, 05 Dec 2013 22:01:10 GMT

Hi,

I would think his OS firewall is blocking port 4747. Jerry suggestion is correct and right on. If the port is open you will see a blinking cursor.

Bill

Re: "Failed to reach server [...] Security settings denies access"

Wed, 11 Dec 2013 08:13:39 GMT

Thank you both for your suggestions. There was indeed a firewall active but after we disabled the firewall, qlikview still didn't want to connect. We have a test-server and there the connection is successful...

Re: "Failed to reach server [...] Security settings denies access"

jerrysvensson — Wed, 11 Dec 2013 08:33:05 GMT

Telnet to port 4747 works, but still no connection?

Is it only problems connecting with Developer?

Can the user connect via Accesspoint? Ajax and Plugin.

Re: "Failed to reach server [...] Security settings denies access"

magavi_framsteg — Wed, 11 Dec 2013 10:04:29 GMT

Check that no antivirus software is running and that you have free CALs.

Sent from my iPhone

Re: "Failed to reach server [...] Security settings denies access"

Wed, 11 Dec 2013 14:36:37 GMT

We've tried to use putty to connect to the server with port 4747 and there was no error. He can access to the accesspoint and ajax is no problem. We haven't tried the plug in. The problem is only with the desktop client.

Re: "Failed to reach server [...] Security settings denies access"

Wed, 11 Dec 2013 14:46:57 GMT

I'm wondering if the problem might be related to the server alias that we are using: qlikview-infrabel. That points to a server with another name. Maybe the client on this computer cannot resolve the server alias for some obscure reason. I'm asking my user to try the server name first (instead of the alias) and then to try the ip address itself.

Re: "Failed to reach server [...] Security settings denies access"

Fri, 13 Dec 2013 14:20:30 GMT

Thank you all for your help. By using the ip address the connection was no problem. Apparently there is some kind of DNS problem here.

Re: "Failed to reach server [...] Security settings denies access"

Thu, 13 Nov 2014 03:57:10 GMT

Hi Allan,

I had the same problem even using VPN, and I've just enable port 4747 in the firewall icoming and outgoing rules and now works. (rules applied and firewall enable)

Hope this works for you as well,

Have a nice day,

Re: "Failed to reach server [...] Security settings denies access"

Anonymous — Wed, 11 May 2016 05:13:56 GMT

Hello,

I just added an Inbound rule under Windows Firewall at Server machine for TCP IP 4747, it has resolved problem "Connected to server OK. Security settings denies access"

Thanks for the help by experts.

Re: "Failed to reach server [...] Security settings denies access"

sohailansari201 — Sun, 19 Jun 2016 18:39:30 GMT

Thanks Imran, that solved a similar issue for me as well.