u/Limp_Jaguar_5470

I am having a lot of issues with my internet and VOIP home phone so considering changing my ISP. I currently have 250 MBPS speed.

The new ISP told me their connection is plug and play and they will send to me a modem that I will connect with the wall. The speed would be 300 mbps.

My question is can I use the cable that’s connected to the wire with the new modem with faster speed internet.

In prep for the new internet I have tried to disconnect the cable which is connected to a slot in the wall on one side and my current router on the other side but its tuck and is not budging.

Any, all advice is welcome. A big thanks!