Problem:

Some services keeps on stalling.
Lets focus on Spotify as an example.

This is tested via PC & Win 11 & Android mobile. 

• Conneted direct to the fibre: Works great.
• Conneted via Mobile  HotSpot: Works great. (This for verifying PC, Mobile & Spotify)
• Conneted via M9 either WiFi or RJ45 Spotify keeps on stalling.

SetUp

• Fibre access. 
• 250 Mbit/s Up/Down
• TP-Link M9 3 units
• All units runs on latest firmware.

Actions taken:

• Restarted M9.
• Reset and configured all from start.

Recomendeations to solve this issues?