Welcome and thanks for sharing your internet connection issues with the rest of the community! I realize how inconvenient something like this can be. 😞
Firstly, have you tried rebooting your modem? To do so, simply unplug both the power cord and coaxial for about 2 minutes and then plug everything back in making sure it's tight and secure.
Also, are all of your devices unable to connect?
If still no luck and the issue continues to persist, kindly send us a PM @CommunityHelps so we can have a closer look.