Hi Jose,
What do you get for GSMSignal in the Flexy? (In ‘Diagnostic → Files Transfer → estat.htm’ under the name GsmSignal, there will be a value representing signal strength from 0 to 31, which 18 being the recommended minimum for a stable connection.) This is the most important factor in the ping time.
Which antenna are you using? Does it have an extension cable? Is the Flexy inside a cabinet or is the antenna obstructed by any dense material, like metal or concrete?
If you can answer the following questions, I can check to see if you are not using the optimal VPN server (The server is selected automatically by where you create your account, so this can be affect ping times if you create the account in one country and have the Ewon in a completely different area):
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Where is the Flexy located?
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Where are you connecting to it from?
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What is the serial number?
The best remote access protocol is dependent on a number of factors. Typically, for Windows applications, I’d recommend RDP, and for Linux, I’d recommend VNC, but there are other factors. This article has more info: VNC vs RDP: Similarities and Differences
Best Regards,
Kyle Reynolds