On multiple PCs (Surface Pro 4, Asus UX32VD) that I have running Windows 10 insider preview build 14393 (which will be released to the general public as the Anniversary update very soon), if Enpass Desktop is running (tested with versions 5.2.1 and 5.2.3), it causes cyclic network delays on wireless networks. Every 8-10 seconds, ping times over wireless are greatly increased for 1-3 seconds, and throughput drops to near nothing.
For example, if Enpass is not running, I get between 27-29ms l