after restoring the internet, the indicator on the router lights up red

On May 21, you had a breakdown and I was without Internet for 3.5 hours. After the Internet was restored, my Wi-Fi router Hub 3 (if I'm not mistaken) began to network with a red indicator instead of an orange one. Rebooting did not lead to anything.
The next day, my Internet was lost again for 3 hours, and again after the Internet appeared, the indicator glowed red.
I rebooted everything again and again it did not help.
I ask you to replace my router, since according to the information about this type of routers, even the Internet supply, with a red indicator, it is necessary to replace the router, since it can fail completely at any moment.
I cannot risk being left without Internet, since the Internet is my study and my work today.
I ask you to replace my router and give me a working router.