Member Avatar for LastVampyer

I have a Netgear WGT634U and it doesn't seem to want to work :(

Last night, my ISP (Virgin Media) decided to randomly disconnect me...again. So I unplugged the router and the modem, waited 20 secs and it usually fixes the problem.

But this time, when I plugged the router back in all of the port lights were on and I only use 3 so I thought that was odd. I tested it without any ethernet cables in and still all of the port lights were on (well, the power, "i", 1, 2, 3, 4 lights were all on).

I can't even connect to the router itself () and have tried resetting it to factory settings but with no luck :(

It's embarrassing seeing as I'm an IT professional (Cisco qualified too :P)

Any help would be appreciated

Thanks

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  • Latest Post Latest Post by LastVampyer

Dani AI

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Brief, practical follow-ups to try after the ISP blip reported by and the power‑sequencing tip from . These steps focus on isolating firmware/boot problems from a true hardware failure and on gathering the right info if you need a warranty or deeper repair.

Start with the power path and visual clues: confirm the router’s adapter matches the label (voltage/polarity) and, if possible, swap in a known‑good, matching adapter. Inspect the board for swollen capacitors or burn marks and note exact LED behavior and timing during the first two minutes of power‑on (which LEDs change, blink rates, and when). That log of symptoms is the most useful diagnostic evidence.

If basic state resets/power sequencing don’t help, attempt a model‑specific firmware recovery rather than repeated blind factory resets. Obtain the official WGT634U firmware, connect a single PC directly to a LAN port, give the PC a static address in the router’s default subnet, and use a TFTP/recovery utility to push the correct image during the router’s early boot window. Avoid flashing any firmware for other models.

If firmware recovery fails or the router gives no serial/boot output, it’s likely hardware. For advanced fault-finding, connect a USB‑TTL serial adapter to the router’s console header to capture bootloader messages (common baud rates are 57600 and 115200, check the model docs). Opening the unit and using serial/TFTP steps voids warranty—if the device is still covered, prepare an RMA request including: exact model, serial number, firmware tried, a concise LED/timing log, and any serial boot output to speed Netgear support or forum help.

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Member Avatar for Xlphos

Hello,

Usually when this happens to me I only unplug the modem power and Ethernet. Leaving the router on.

I suggest unplugging the router for a few mins then plug it in leave it until only the power light is on. Then reconnect the ethernet for the internet wait a minute and then plug in the rest of the cables.

Member Avatar for LastVampyer

I'll give that a try, thanks :)

I've also emailed netgear to see if they can help, either way I'll let everyone know what happens :)

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