My network was working fine as it was for about a year, the modem wired to the router via a CAT5 wired to a smart TV and a desktop computer. Then we started having a couple problems and within about a week the wired network quit working. I've troubleshoot it down to the CAT5 cables connecting the devices, the problem is that the CAT5 cables are behind finished drywall and it's not just one cable it's multiples. What could I have done wrong or what could have gone wrong to cause a CAT5 cable to not work?