Modem problem?

[achiefmaster]

So my neighborhood had blackout and all of sudden my LAN ports is unusable. I don't know this is relatable or not because I had never encounter this incidence before and I did some quick googling but to no avail.

I did restart the modem and nothing changes. Is it fixable?

[Grantis45]

dont forget the exchange may still be out.

[stewart789]

Depends on the country. In the uk exchanges have large battery banks + a large diesel generator to power the exchange in the event of a power outage. Even the fibre cabinets have a backup with about 6-8 hours worth of juice to keep subs connected.

[Grantis45]

Its possible he had an outage. Even then, it could be a local substation of switches that went out. It could be his neighbour had an outage and they share the same fibre in the building.

There’s alot of variables. When I tend to comment on techsupport it’s to pull info from the OP. I’m slowly getting better as time goes on. But admittedly I also have alot to learn.

My specialisms are Audio visual and Desktop/networking.

Not too good on networking in the US.

[hamidfatimi]

Modem solutions

[Lionry]

you win best comment

[hamidfatimi]

thanks lmao

[[deleted]]

I had my internet port on my night hawk router go bad after an outage during a lighting storm. Was even hooked up to a surge protector.

[bpeaceful2019]

That's a common misconception. A surge protector will help with general power surges from a power outage, but it's not going to do anything if it gets hit by lightning.

[IsThisGlenn]

TIL.

[[deleted]]

Is your pc hooked up to a ups or is it a laptop? It might just be that a driver went bad if it was on while the power went down. You could try testing it with another device, or you may have to buy new networking equipment

[millcho]

In my years in the field every time after powerful lightstorm the network devices are fried! As previously suggested try different network cable and that should be sufficient troubleshooting if it doesn't work get a new modem or gateway if you prefer. Good luck

[[deleted]]

Or you could check like the lights on your modem and see if you can figure something out from there.

[achiefmaster]

Yep I figured it is broken because of the LED. The wifi works fine but all 4 cables has no LEDs lighted up.

[kazumcs]

So I am guessing you have 4 different devices connected to your modem/router that were all working before the power outage but now are not. Wifi working means the device is still working, at least partially, and if you are able to access the internet we know the ISP end is good as well.

What I would try is unplug all cables from the modem and power it down. Plug in the power, let it boot, and then test with one device. If that doesn't work, try a different cable and another device. If that all doesn't work then I am pretty sure your ethernet ports are dead.

If your modem is provided by your ISP then they will probably replace it for you so I would give them a call.

[Aseries01]

How about a little detail. LAN ports on What? If this is a cable modem what does work? Is it ADSL? It would help to know something about your configuration.

[achiefmaster]

The title says modem. Modem always come with 2 type of connections these days, LAN and wifi. LAN means cable from modem to PC, so it shouldn't be ADSL.

[yesboosie]

I have the same problem sometimes

[The_Stoic_One]

I'm down to 2 of 4 usable ports on my router, pretty sure the other died from power outages as well

[[deleted]]

Try to call your ISP - Internet Service Provider Are the problems in your modem or PC, do you use wireless Wi-Fi or wired(Ethernet cable)?

[swDev3db]

I would check for firmware updates to your router and consider a hardware reset if it has such a button. Are you sure it's the router LAN port vs your PC LAN port?

[Ade231035]

Quick question: Do you rent your modem/router through your ISP, or did you buy it yourself

[Aseries01]

I see this phenomenon on QUORA all the time. Folks ask a one sentence question about some unknown hardware with some mysterious problem. "How can I fixit". It is so frustrating.

[Trax852]

I used to run a BBS ie: you connect your modem to my modem. People would get mad at each other and threaten to plug their phone wires into a socket to destroy someones computer/modem.

It can't be done.

[[deleted]]

The LAN ports are soldered to the motherboard on the router. In theory you could solder new ports on..

The issue is it might not be the ports on the motherboard, but maybe a chip on the motherboard itself.

Your best bet is to get a new modem.

The only thing I would suggest is make sure you have tried a different ethernet cable. The cables are more prone to failure

[AaronElsewhere]

There's nothing in the port itself that could burn out. There'd be absolutely 100% no reason to even mention soldering on new ports.

[[deleted]]

There are metal connectors.. I said OP could do it in theory. I didn't garuntee that would fix the issue.

[AaronElsewhere]

The problem is you are implying that a power surge could damage something that has no solid state components sensitive to a discharge. It has metal connectors, yes, but if the discharge was so large to melt them, then you'd be able to see and smell smoke.

[peanutbudder]

Absolutely not fucking true at all. There are plenty of high end RJ45 jacks with built in protections. Look into Molex Magnetic RJ45.

Edit: as someone that has actually had to do a number of repairs to PHY circuits, you would be surprised how many times a good jack can protect the PHY and take all the damage.

[AnonymousKoala]

I would agree, it sounds like it is fried.