Hey @Philbert, Thanks for your reply! I continued my troubleshooting(read - Desperate search) after my post and found out that there was a "limiter" under the QoS which was set to my old speed for...

Some time ago my internet provider informed me that they would bump my internet from 150/30 mbit to 300/60mbit.. Checked thru the deco speed test, and everything showed up as it should(a bit more...