My WAN IP keeps dropping

[lowfuriouysISP]

Hello everyone, im new to Opnsense. I have recently set up my Dell Optiplex as my opnsense box, I have a Intel x550-T2 dual Nic 10GbE as my wan and lan ports. I have a netgear CAX30 on bridged mode acting as my modem. Also my ISP is Cox. The setup works fine for the first 10 minutes then it drops both IPv4 and IPv6 public addresses, then it comes back in 2 minutes and it just keeps looping. So my workoaround was to set it up as double NAT, but of course it's not ideal. Any suggestions would be really helpful.

Thanks :)

[meyergru]

You do not say which Optiplex this is, but know that the X550, especially the 2-port variant is getting VERY hot. These and the previous X540 models are meant for rack server use and having no active cooling, so they may drop out after a while.

Also, it seems to have a hard time on handling auto-negotiation at Nbase-T speeds and with some ISP modems. There are firmware upgrade available and also, you need RSS enabled to use the full bandwidth.

Use the forum search with "X550" and you will see...