VCL Subscription Manager Fails to Connect via 4G

VCL TMS VCL UI Pack
1

Hi,


Due to ADSL issues, I am now connecting to the internet via a 4G connection, but this fails with the message:

[Window Title]
TMS Subscription Manager
[Main Instruction]
Cannot connect to the internet
[Content]
Please check if a firewall or anti-virus software is not blocking internet access to TMS Subscription Manager or your proxy is configured correct.
[OK]

All other software (Google, TeamViewer, Adobe, ...)  connect fine to the internet.

Very best regards,

Olivier
2

Our software is not performing any kind of checks on the type of network.
It just tries to do HTTP GET requests to http://www.tmssoftware.com 
If this fails, there is a software issue (firewall / antivirus / proxy /...) or network issue.