Best Ethernet Port solution

[xfngrs]

I have a PC which has one ethernet port. It is currently used by the cable modem. I want to add an ethernet port or a/b switch or whatever the best solution is to add a 2nd ethernet port to hook up a hard-wired Roku 2. Help!!!

 

[Emerald]

router

 

[noidea_77]

A cheap pci ethernet card?

 

[xfngrs]

Thank you. I got a router.

 

[xfngrs]

Okay everybody. I set up my router and it worked beautifully for 3 days. Then internet disappeared. I've reconnected and replaced cables so much I can't remember how things went. I have a drawing of the wiring, but I can't attach it here (I think). If someone can tell me where I can put it so you can see it, please let me know.

Thanks again,

 

[PhilippZ]

Reset the router to factory default and redo the setup. Upgrade the firmware.
Othewise use a wired ethernet switch