4096 can be too much for unstable connections, for example Wi-Fi or mobile. Also, 4096 bytes at what level? Layer 2? And when you are using a tunnel, you add b

4096 can be too much for unstable connections, for example Wi-Fi or mobile. Also, 4096 bytes at what level? Layer 2? And when you are using a tunnel, you add bytes and thus have to go higher than 4096 or go lower and reduce MTU, or fragment the packet to keep 4096 bytes. You are just raising the limit, not solving the problem.