Infinite Loading Screen When Entering Maps (Intermittent)

Since today, I’m experiencing infinite loading screens when entering maps or teleporting via waypoint.
Yesterday everything worked normally. Today, the game only loads successfully about 1 out of 5 attempts. The other attempts result in an infinite loading screen that never completes and requires force-closing the game.

Details / Symptoms:

Loading screen never finishes (waited 10+ minutes)

No crash, no error message

CPU/GPU usage stays very low during the stuck loading

Happens mainly when entering maps, sometimes when teleporting

Occasionally works, but very inconsistent (approx. 20% success rate)

What I have already tried (no change):

Switching renderers (DX12 ↔ Vulkan)

GPU driver downgrade

Clearing shader cache

Verifying game files

Changing gateways

Restarting game / PC

Important notes:

This happens on both DX12 and Vulkan

GPU drivers are not the cause (tested downgrade)

A friend can play normally at the same time, suggesting instance server or routing issues

Feels like instance creation sometimes times out and never recovers

Conclusion:
This appears to be a server-side / routing / instance creation issue, not a client or hardware problem.