Hello, I try to post it in English, it's a little bad but I'll try it.
I have a problem with NetDuma router, tried all tutorials, councils and advices from staff, but don't work well (Speed connection is low).
Normally (Without NetDuma) have around 13-14 mbps and 3-3'5 (Download / Upload Speed), but with Netduma connection my best try was on 6-6'5 mbps and 1'5-2 (Download / Upload).
And yes, I try all (or I think it).
Select region, Filter by Distance and Ping, With (and without) nodeservices, Bandwidth auto and manual, 100% caps, device priority modified and reset, all algorithm, with and without DMZ accces from old router, same on IPv6 (ON/OFF on LAN and WAN), Misc adjustment same (With and without hidden packets, cookies...).
All, and don't work.
Physical connection it's tested too ofc, connections, wire / cable type (Cat6).
It's a hell, please help.
I reset from factory today and enable "Allow remote acces to NetDuma" if it can help you to solve it.