QMC can't be reached after a change of IP

[morenoju]

Hi all,

A colleague in charge of our Azure infrastructure changed the IP of the Qlik Sense Enterprise on Windows that I had deployed and since then, I'm getting a "The site can't be reached" error when I try to access the QMC:

In the System_Repository log (C:\ProgramData\Qlik\Sense\Log\Repository\Trace) I'm seeing:

There was an error contacting the license service. Keep retrying... (70 failed requests) GET /v1/licenses/overview StatusCode: InternalServerError Response: . Could not connect to the license service. NO-STACKTRACE

Do you think that this is actually related to the IP change or is it a ports error? I'm unaware of any change in ports/firewall rules, but since I don't manage the Azure infrastructure it might be possible.

If there is a concrete port that might be related to the license service I could also request to verify it's open.

Thanks

[Eugene_Sleator]

Hi @morenoju  the ports used for the License service our 9200 and 443. 

Refer to this here  for a complete list of all ports used 

[morenoju]

Thanks @Eugene_Sleator. I've verified the 9200 and 433 ports are open.

However, comparing to another Virtual Machine where Qlik Sense works without any issue, I can see that in the VM that is OK there is a licenses.exe process is running on port 9200. That process is missing in the VM with the issue.

Could the IP change had made impossible for licenses.exe to run? Do you know how I may fix this?

[Chip_Matejowsky]

Hi @morenoju,

After changing the IP addresses of the servers, did you update the DNS as well?

Best Regards

[morenoju]

Hi @Chip_Matejowsky, I didn't change the hostname of the machine and didn't make any change to the hosts file in C:\Windows\System32\drivers\etc.

Note: I'm trying to access the qmc typing 'localhost/qmc' in a Chrome web browser while connected to the VM via RDP.

[Eugene_Sleator · Accepted solution]

Hi @morenoju  you could try to run the script Configure-Service.ps1 script located at 

C:\Program Files\Qlik\Sense\Licenses 

also make sure that there is a file Host.cfg  in C:\Program Data\Qlik\Sense\
decode the contents (base64 encoded), and ensure it matches the server FQDN 

[morenoju · Accepted solution]

Thanks @Eugene_Sleator. I've ended up uninstalling Qlik and re-installing it. That worked.

I'll take a note of the script you mentioned in case I need to change the IP again in the future, to avoid a re-install, but for now, I have the QMC reachable again. Thank you!