Broken WAN port, can I use LAN port R6900

Question

Hi,To hopefully make this easier to navigate I've put my questions up at the top but to get the context please read below&nbsp;Q1: If the WAN/Internet/yellow port is dead, is there anyway to "remap" one of the LAN ports on this router to be used as the WAN port instead since it appears these ports are working fine?&nbsp;Q2: It appears the WAN port is dead...any ideas how to fix it or is it probably unfixable (by me)?&nbsp;Yesterday was using the weather channel app on my phone thru WiFi looking at the radar when all of a sudden the internet stopped. Seems a bit mysterious to me but when looking at the router the normally illuminated internet symbol (little round thig that looks like a planet maybe) was dark. Also noticed that the LAN symbol on the cable modem (Xfinity ISP) was out. To check the modem, I unplugged the cable from the WAN port on the router, plugged into a LAN port on my laptop (remember no WiFi) and the laptop connected to internet right away and worked fine.&nbsp;I factory resetted the modem and same issue. I then connected (looping) the same ethernet cable from the WAN port to a LAN port on the router and still the WAN port symbol stayed off. The router (LAN) still seems to be working fine as I can connect thru the WiFi and access devices on my home network. Lastly, using my PC connected to the router thru a LAN port I logged intot the router, went to "internet" and clicked on statistics or some other button and the WAN port was "Link down" or "down link" and all the other data fields were blank (the LAN port used by my PC had active data onbviously as I was using it).&nbsp;Thanks for any help given!

plemans · Answer

If you go to your routers ip address + /debug.htm&nbsp; there used to be a map wan port to lan port 1so if your address is 192.168.1.1&nbsp; you'd go to:192.168.1.1/debug.htm

benjedi420vt · Answer

Hi. Thanks for this response. So I went to the debug page and there was a option to check called

WAN mirror to LAN port 1

Is that what you were referring to?

Anyway, I checked it, unplugged my home network LAN cable from LAN port 1 and put it into LAN port 2. Then I unplugged my cable from the WAN port and pluged it into the LAN port 1. Then I rebooted the router.

The home netowrk seems to be working but unfortunately the internet is still out.

Ben

plemans · Answer

What modem is it?&nbsp;Did you power off the modem and the router for 2 minutes,&nbsp;then power the modem on, give it 2 minutes, and power the router on?

antinode · Answer

&gt; [...] there used to be a map wan port to lan port 1 [...]&nbsp;&nbsp;&nbsp; "map" and "mirror" are spelled differently for a reason.&nbsp;&nbsp;&nbsp; I know nothing, but I would not expect that feature to work asdesired.&nbsp; My (possibly dim) understanding of such port mirroring is thatit's read-only, intended to allow monitoring of the WAN traffic.&nbsp; Iwould not expect it to allow (potentially) multiple simultaneoustransmitters on the same interface.&nbsp;&nbsp;&nbsp; A quick Web search for terms like, say,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; router port mirrormight be educational.&nbsp;&nbsp;&nbsp; On my D7000[v1] (V1.0.1.78_1.0.1), I can find no such feature, so Ican't test anything, but I'd be at least a little amazed if it workedthe way you want.&nbsp;&nbsp; With a dead/disconnected WAN/Internet port, I'd expect to see nothingat all on a mirror port.&nbsp;&nbsp; Irrelevant: The D7000 has a different feature on its debug.htm page,"Save a copy of WAN interface packet trace", but I've never gotten thatto save Bit One, so I wouldn't mind having even a limitedport-monitoring feature.&nbsp; If it worked at all.

benjedi420vt · Answer

Thanks for all the replies. I got a new router the RAX78 from Costco. However, I'm wondering if something happened to my modem Netgear CM1150V. Since hooking up the new router, I have been losing internet signal 6-10 times per day. Xfinity just confirmed to me they see that I have lost signal 6 times in the last 24 hours.&nbsp;Any ideas on how to tell if the modem is bad or going bad? It's only 6 months old and I purchased it from Netgear.com so I can't just return it to a store (won't ever buy that way again...costco every time from now on)&nbsp;&nbsp;(sorry if now this is the wrong thread)&nbsp;

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Broken WAN port, can I use LAN port R6900

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