We recently installed a P2P T3 circuit between two offices. We are getting a large number of input errors, CRC, overruns and carrier transitions INTO one of the sites. At the site the connection is coming from, our provider is testing clean to the handoff to the LEC. The LEC claims their network is clean and that there is an issue between the demarc and CPE.
Our extension is RG59 Coax with a length of 478 feet from demarc to router.
My question is: I have read teh limits for this cable for T3 is 450 feet. Is this true? Could this be the problem? Does anyone have any insight into what direction to go with this?