Hi Alphtheo, Haven't heard or seen anyone with this issue that they can't increase their light level. So I'm going to go on a quick summarization on how the system works, in any case this is your first Destiny game. (Read spoiler below) [spoiler]There are two numbers associated with how powerful your Guardian is on the gear screen - Experience Level and Power Level. Everything you do in Destiny 2 - completing missions, Patrol activities, killing monsters - gives you XP, and at a certain point, you will hit the experience level cap of 20. (Or for those with Curse of Osiris - level 25, and level 30 for Warmind). There is also a large number on the right, which is your Power level. This second rank takes into account the average 'Power level' of all your currently equipped weapons and armour. Essentially, every piece of gear that drops could be higher than what you have, so you want to keep an eye on your inventory, look at any flashing boxes in armour or weapon slots, and compare the two. Swap it around or infuse the higher level gear, and the average should increase a few points. [b][u]Doing weekly milestones and the raid helps a lot to get more powerful gear.[/u][/b] So once you get past the 340 to 345 range, the best course of action is to do Powerful Gear activities - indicated by the Milestones - as well as the Nightfall and Raid every week. These drop gear that scale with you to the level cap. The Warmind DLC has introduced a problem when it comes to levelling, however, with many new end-game activities - from Heroic Strikes to the Spire of Stars Raid and Escalation Protocol - coming close to the level cap difficulty of 380, meaning those who have just breached the 340 soft cap will find it difficult. Though players who Raid can close the gap effectively, players who play solo or in terms of three are limited with their Milestone options, so it may take more weekly resets to get there. It seems like, right now, that patience is the key.[/spoiler] I could go on, on how it works but just trying to keep it as simple as I can. If indeed this is the case that you have a glitch/bug could you provide video of you receiving milestone rewards and infusing the gear or equipping and your light level not increasing?