Internet keeps crashing since adding my own router

[u/Silent-Art8970]

Hey all. I will try anf explain this the best I can as im not very good with this stuff and I relied on chatgpt to even have got me this far. Lol

I am having issues with my internet crashing and not recovering. The back story first. I have optimum fiber internet. I have there gateway. I was using this for the last year and no issues other then wifi range. Otherwise my internet was stable. A few days ago I decided to get my own router. Netgear nighthawk rs300 wifi 7 to be specific. I ended up calling optimum to tell them im using this router and to put my gateway into bridge mode. Which they said they did. Great. I connected my router to the yellow ethernet port on the back of the gateway and into the same port on my router. Everything worked great for about 8 hours. I woke up to my phone saying connected without internet. I restarted both the gateway and router several times. I only got the internet back for a minute or so before it crashed again. So I decided to plug the ethernet cable into lan port 1 on my gateway to see if that worked. It did. And is stable. Problem is though is that port is not acting as a router. The ip address is 10.0.0.1. The port that is supposed to be bridged seems to be. My router has its own ip address. 69.127.126.xx but for some reason it keeps crashing. Did optimum not configure the bridge correctly? Is this an optimum problem or my routers problem.

Side note. When plugged into the bridge port on the gateway with the router my Xbox nat type is open and UPnP is good

When plugged into lan 1 my nat type is moderate and UPnP is unsuccessful

Thanks

[u/LegitimateResolve522]

It's the rs300, it's a complete piece of sh*t and never should have left the design lab and hit the sales floor. Had one for a week....constantly doing exactly what you described. Took it back, never had an issue since

[u/tx_mn]

Get a different router and return your router. It’s junk