Hi all. I set up a new Route10 yesterday afternoon and intially it was working great, my new 10GB internet was lightning fast. However, yesterday evening the SFP+ port containing my transceiver just stopped working and the white light went off and my internet connectivity dropped. Details:
The SFP+ port containing a Lightwin** SFP+ module LWO-SFPP-2733-20 now shows no white LED activity on the router. I have tried re-plugging it in and rebooting the router. The router top light is blinking red and I tried to re-run the intial web setup but it says it cannot connect to my ISP, probably as there is no fibre signal.
The router is now showing as DISCONNECTED in the management tool, despite still being connected to my local network (blue light on first 2.5G port is blinking for activity).
My internet provider is reporting no outages.
My other SFP+ port is working fine for the 10GB ethernet transceiver with cable connected to my PC, the white light is blinking for activity.
I am completely stumped as to why this is happening and I please need help to get my internet back up and running so I can work in my office again. While itâs of course possible my cable or transceiver just âsuddenly diedâ after working fine, it seems a little unlikely.
To be honest, this may be difficult for anyone to diagnose as weâd need more context to any previous gear installed, ISP information, etc.
Either youâve exceeded or are below the operating tx/rx power for the bi-di SFP, or the SFP is shot.
If youâve exceeded, and havenât already damaged any internal components local to just the SFP, then youâd need some level of attenuation. This is hard to determine unless you know the current optical receive power. Your ISP shouldâve provided this data post install. If not, youâd need a way to measure that via way of an optical power meter.
If youâre below, then either your fiber tip/connector is contaminated and needs to be cleaned with a one-click or cletop device, or itâs an ISP fiber issue. The problem with this is that if your ISP handoff was contaminated, you likely contaminated the core of your SFP port as well. A one-click can usually resolve this as youâre able to interchange male/female tips on the one-click to clean fiber connectors along with your SFP port-bulkhead. Iâd contact your ISP to investigate and confirm on-site.
Or you simply havenât defined your Route10 SFP+ WAN port settings. Ensure you have everything defined and preferably not set to âAutoâ. This includes negotiation settings. Unfortunately, if youâre managing your Route10 through their cloud, then youâve got another issue at hand which may require you to haul your Route10 to a location with a functioning internet connection just so you can establish the said steps/settings above. Once performed, the config would be pushed southbound to your device while online. Then you can try re-establishing your connection at the office.
Iâd start with getting your ISP over to your place of business to confirm optical levels are within nominal range of operation.
Thanks but I donât understand how I would overload the SFP+ with a transceiver that is perfectly within the spec of 10GBe, with the correct cable installed. It was working fine until it wasnât.
Anyway I have ordered a new transceiver and cable so I guess I will hopefully find out this evening where the problem is!
What is your current optical receive out of your fiber? If youâre unable to support an answer, then how do you know youâre within operating range? Just because you were operational for a short period doesnât mean everything was âworkingâ as intended. Or this is strictly port configuration based on the Route10.
Also what was your demarcation point prior to your Route10? Were you always utilizing that same SFP+ and fiber?
Again, if you do not know the current RX value out of your fiber before your SFP+, how do you know you are within nominal operating ranges ?
Just because an ISP claims to be within a certain âmarginâ does not mean every subscriber is always within these margins.
FTTx usually endures numerous splits out in the field further drawing that RX value down by the time it hits your demarcation.
This may or may not be the issue, but this is where Iâd start. Or weâre wasting time here and you received a dud SFP+. Keep in mind, usually ISPâs require some level of detail/registration for the ONU/Bi-Di. Usually a MAC, etc. This way it can be registered on their end at the OLTâs.
Be mindful that every time you disconnect your fiber jumper from your demarcation point, you risk introducing elements and contaminants to the glass core on the demarcation/hand off side of the bulkhead causing more issues.
Ok i swapped in a new transceiver with a new cable, testing all combinations, and nope itâs exactly the same, no activity on this SFP+ port. Either the router failed and the port is dead, or my wall box connection is dead. I will get hold of the ISP tomorrow.
Well well well⌠seems the problem was outside of my apartment OTP connection box⌠it all of a sudden just started working, nothing was changed. Annoyed doesnât begin to cover it. Thanks to anyone who responded with anything helpful.
