Mike, sorry I missed this. I don't see posts very often any longer.
CrazyCatGuy T-Mobile fucked me with any directional antenna due to their non-stop tower switching. I presently use 360º omni-directional cellular antennas in order to maintain a connection when the signal switches from one tower to another.
Are you aware you can force lock onto a single tower? Or at least you could in the past. What device are you using?
On jDownloader, there is a much more methodical approach to take. Essentially you have to run a couple tests to get a bit more data and based on that we can get you fixed up.
Most important test:
- Find a very large download, something that has 20+ parts/links if possible.
- Set your max chunks to 1 (very important)
- Set your max simultaneous downloads (and per-hoster) to 99 (any number larger than the number of links being concurrently downloaded)
Begin downloading. Wait until all connections are active, then begin watching to establish an average throughput, then pause the process before going any further. Let me know the total throughput of that experiment.
With the exact same files/download paused, restart it without a VPN and let's look at that number. Pause again once it levels out and you have an idea of the throughput.
Same approach -- pause then restart the same downloads, this time with the VPN on again and the only change is setting chunks back to 5. Pause again.
Finally -- wait 5 minutes, then repeat all three tests (in the event that RG cached to a more optimized CDN/geo).
Send me all six averages, they don't need to be precise. This isn't as simple as choosing which of those is highest. Rather, I'm using these to intuit issues on your system based on the combination of all six and the specific distribution.
Once I have those results, I can likely get an idea where the problem lies 🙂