I can not play webrtc stream whep url when I use 4G LTE network,

[tung3110]

Hello, I can not play webrtc stream whep when I use 4G LTE network, When I use "sudo nmcli r wwan on", When I use "sudo nmcli r wwan off" I can play streem that OK. Please tell me how to fix. Thanks so much. !

root@linux:/home/ubuntu/ffmpeg-webrtc/FFmpeg-n4.3.3# ffplay -i -fflags nobuffer -max_delay 0 -max_probe_packets 1 -analyzeduration 0 -flags +low_delay "webrtc://mystreamwebrtc/rtc/v1/whip-play/?app=live&stream=212b0a1f90f44ddb87e6f5f6213557ba_tungdev" -nodisp
ffplay version 4.3.3 Copyright (c) 2003-2021 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.2)
  configuration: --enable-libx264 --enable-gpl --enable-cross-compile --enable-libpulse --enable-libopus --enable-ffplay --disable-shared --enable-static --extra-cflags=--static --pkg-config-flags=--static --enable-libsrt --enable-nonfree --enable-libass --enable-libfreetype --enable-libmp3lame --enable-openssl --extra-libs='-L/home/ubuntu/FFmpeg-n4.3.3/metartc6 -lmetartccore6 -lpthread -lsrtp2 -lssl -lcrypto -ldl' --extra-ldflags=-ldl
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
[webrtc @ 0xb3d00630] webrtc_read_header, filename webrtc://live-prod.truyenthanhso.vn/rtc/v1/whip-play/?app=live&stream=212b0a1f90f44ddb87e6f5f6213557ba_tungdev
[webrtc @ 0xb3d00630] webrtc_open webrtc://live-prod.truyenthanhso.vn/rtc/v1/whip-play/?app=live&stream=212b0a1f90f44ddb87e6f5f6213557ba_tungdev

srtp init success!
    nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
avinfo->sys.whipUrl==rtc/v1/whip/?app=%s&stream=%s
session->context.avinfo->sys.whipUrl=rtc/v1/whip/?app=%s&stream=%s
startRtc,port=10358
[webrtc @ 0xb3d00630] AudioInfo, audio codec 3, sample rate 48000, num channels 2
[webrtc @ 0xb3d00630] VideoInfo, video codec 0
Segmentation fault