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TP-Link Archer C7: TP-Link Archer C6 (V3.20) Water Damage - No Power After Getting Wet

Thu, 04 Jun 2026 21:06:07 -0700

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Hi everyone,

My TP-Link Archer C6 (AC1200, V3.20) got wet after accidental water exposure. Since then, the router shows no signs of life when the power adapter is connected.

Opened the router and inspected the PCB.
No obvious burnt components.
No exploded capacitors.
No visible severe corrosion or damaged traces.
Antenna connections and main board appear physically intact.
Router currently does not power on at all (no LEDs).

Model: TP-Link Archer C6 V3.20
Power Input: 12V DC, 1A

(Attach all PCB photos, both sides, power section, and close-ups)

Questions:

Which components commonly fail first after water damage on the Archer C6?
Is there a fuse, protection diode, or power MOSFET near the DC input that I should test?
What voltage rails should I measure after applying 12V power?
Are there any known schematics or boardviews available for this model?
Based on the photos, does anyone notice signs of corrosion or damage that I may have missed?

I have a multimeter and am comfortable performing component-level diagnostics if someone can guide me through the measurements.

Thanks!

⟐ Commented 6월 04, 2026 at 21:06 GMT-7

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⟐ Answered 5월 30, 2026 at 5:41 GMT-7

TP-Link Archer C7: Router does not turn on.

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I tried the power adapter on other routers that I have and it turns them on, so the issue is not in the power adapter.

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⟐ Commented 5월 21, 2026 at 7:42 GMT-7

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Thu, 14 May 2026 10:55:14 -0700

Yesterday, I got a router from my ISP and it has not been switching on at all. At first glance, there were no signs of life. I eventually settled for opening the device, and heard a continuous clicking sound when the device was on. After closer inspection, there were two LEDs, each with a green and red light rapidly flashing. The router otherwise shows no signs of life, wifi does not work, and ethernet doesnt work either.

Can you help me?

Thanks

⟐ Answered 5월 14, 2026 at 10:55 GMT-7

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⟐ Answered 5월 14, 2026 at 10:54 GMT-7

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⟐ Answered 5월 14, 2026 at 10:48 GMT-7

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I’m about to buy a WIFI 6 WRT/Open Source router and need recommendations, explanations and comments.

I’ve read the online articles. I need to hear from someone who has one already.

I have an Airport Extreme and a Time Machine server. I have a Spectrum internet that constantly acts up. I don't know why I can't use either of mine to replace Spectrum's but it's not working. So when I buy a new one I want to plan for the future even if I have no immediate need. For example, once the stimulus check reaches me a big chunk goes to the mac mini M1. It's WIFI6 so the new router needs accommodate it. I'm a network nutso too. I started with twisted pair and then grinos for packet on two meter. So I want to have as much or little control over settings ergo WRT or at least open source router control.

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⟐ Answered 5월 13, 2026 at 12:07 GMT-7

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⟐ Commented 4월 03, 2026 at 21:31 GMT-7

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I have so far rebooted and reset in all ways that I could.

I am able to log into the admin console it gives me the following errors:

CMSTATUS:US_ Diplexer_Mode_Change:Fixed lnitial, 5-42MHz.

SYNC-Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing(MAC Address Here):M-OOS=1.1:CM-VER=3.1

Trying to see if this is in fact something that I can fix or if it's not worth my time -- either way I appreciate anyone's input

⟐ Edited by author 3월 29, 2026 at 5:20 GMT-7

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⟐ Commented 3월 24, 2026 at 18:34 GMT-7

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⟐ Answer edited 3월 20, 2026 at 21:13 GMT-7

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⟐ Answered 2월 23, 2026 at 1:51 GMT-7

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⟐ Commented 2월 09, 2026 at 1:04 GMT-7

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⟐ Answered 1월 31, 2026 at 6:29 GMT-7

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⟐ Edited 1월 22, 2026 at 1:24 GMT-7

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⟐ Commented 12월 07, 2025 at 3:15 GMT-7

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⟐ Answered 12월 05, 2025 at 1:35 GMT-7

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⟐ Commented 9월 05, 2025 at 13:17 GMT-7

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Sun, 31 Aug 2025 16:08:43 -0700

I just opened my A1521 Airport Extreme to clean and lube the cooling fan, trying to solve the overheating problem. Everything has gone back together nicely until I got to the last step of connecting the two small connectors to the logic board. One of these goes to the indicator lamp, not sure about the other. After an hour of trying, I’ve had no success in getting the connectors to snap into place. The back of the connector is virtually smooth, so I don’t see how it is supposed to connect. It does not appear like the connectors broke when I removed them, but it seems like I’m trying to connect a smooth connector to a smooth surfaced circuit board. How are these supposed to connect?

Dan, that’s exactly what happened, I can now clearly see that both parts of the connectors pulled off of the board. The tear down instructions gave several warnings about being careful to not break the connector, and I was impressed with how easily and cleanly mine came off. Perhaps I will add a comment about what happened here. I left the reset switch connected to the board, and instead disconnect the actual switch from the case. My problem is with the LED and whatever the other is directly next to the LED. What is that one?

⟐ Answered 8월 31, 2025 at 16:08 GMT-7