No internet LOS light is red on HUAWEI converter

I have t-mobile quartz fiber internet at home. I use wifi every day. Today, the internet suddenly lost at 19:30. The LOS light is red on the HUAWEI converter. The modern has red light on internet globe sign. I can see the wifi network at home but no internet.  I turned on and off the power several times. It does not work.  Pleas help me. Thank you in advance.