Question about 2wire 2700HG-B Router (2700HGB)

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ATT 2wire modem will not work. Red light on power button.

I have an ATT 2wire modem. Worked perfectly for over 1 year. Now, red light on the power button and green light on the wireless button - no other buttons lit up. Tried re-booting computer, re-setting it 5 or more times. At 1st, green light flickered on the power light but now just solid red. Can't connect to the internet, my network does not show under "available networks". Please help!!Thank you,-David S.

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  • Anonymous Apr 21, 2009

    I called at&t - they sent a new router. It wasn't the power cord, it is a problem with the router

  • cesarnrosie Apr 22, 2009

    Red power light. others green. got a new power cord for 10 bucks on ebay. works great now.

  • George Chernisky Sr Apr 01, 2012

    I had that problem with a friend of mine. His ATT modem did the same thing and I had a old one here and took it over to his home and we first decided to try changing the power adapter and that fixed it. So it wasn't the modem at all. Just the power supply was to weak.

  • nate64
    nate64 Nov 02, 2012

    No, it's not a problem with the router, The problem is the transformer. I bought a new 2 wire modem after my old one quit and the old one worked fine on the new one's power supply.

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Hi, It's your power cord. You need to purchase new one. take a look on amazon, here: Finally charging for our multi device world. I hope I have helped. Cheers

Posted on Dec 03, 2014

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Its the power  cord.  the fail after a year to 1 1/2 yrs.  get a new power cord

Posted on Apr 08, 2009

  • scogginfamil Aug 29, 2011

    I just had this happen to me (Aug 2011). Same problem: Red Power light, Green wireless light. I went to radio shack (EXPENSIVE!!!) they wanted $39.00 + $7.00 for a 2 piece power cord.. thats insane... half the price of a new modem with cord... (Hey Radio Shack.. think you can find a 10 piece power cord and sell it for 200 bucks? U guys Suk!) Anyways... went to GAMESTOP and bought a PSP 5v cord... works like a champ. This thread was a HUGE help!!!!

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I just went thru this problem. I lost the Internet Signal after almost 2 years, the top power light was solid RED and the "wireless" light was solid green , all others were off. I talked to an at&t tech and told me to try to test the 2Wire Modem/Router with the power cord from a PSP (playstation portable) which have the same voltage, 5.1 Volts. I dont know anyone who owns a PSP so I went to Game Stop (the used video games store) they were nice enough to test it, they got lots of used cables for the PSP. Once they plugged it in, the power light was blinking green, so I knew the power cord is the problem. I thought of just buying that used PSP cord for $10 but the guys at the store that might as well get the original replacement for $10, at the AT&T store online. Ordered it. Got it. I noticed that it has now 2.2 Amps , the old ones have 2 Amps, hopefully this one last longer with the 2.2 Amps. When I plugged it in, all the lights started to blink green and got the Internet Signal in about a minute as the router reset itself back. To make a long story short (too late) IT IS THE POWER CABLE!!

--Hopefully all this babbling will help someone-- Good Luck!

Posted on Oct 25, 2009

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I had this problem. The solution...the Sony PlayStation Portable (PSP) power supply is 5V 2amp. Works Perfectly as a replacement. It even has the correct plug. (Thanks to Marco at Play Again Video games in Corpus Christi for going through the junk video game power supply drawer)

Posted on Jul 01, 2009

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My daughter had the red led only on her 2 wire modem--after reading the feedback here I checked the output voltage of the power supply which is supposed to be 5.1vdc---it was fluctuating around 3.5vdc -- much too low.I have an electronics backround & opened up the power supply & found 2 capacitors (a 1000uf 16vdc &470uf 10vdc) that had decreased in value by 75%.I replaced these parts and the power supply works normally now.The power supply is made in China(what isn't these days)& I have experenced this poor quality of these electrolytic capacitors from China many times in other electronic equipment.The modem was no more than 2 yrs old.

Posted on Oct 17, 2009

  • narmex7 Aug 06, 2012

    thank you thank you thank you all guys, especially microtech! att sucks, threre tech support told me my modem is dead and tried to get me to order a new one, never listen to them! i couldn't find a spot on board to measure the power supply voltage, but the plug itself measured 5.22V, obviously that doesn't mean much. maybe when plugged in, the modem will draw close to 2A, and the power adapter would then have a problem supply that much current with stable 5.2V. so i opened it up, sure enough the 1000uf 16v cap was bulging up, replaced it with a 1000uf 25v savaged from junk, my modem is working as new now! there is nothing wrong with the modem, no need to buy a new over $100 one, i didn't even spend a cent. never listen to att, you guys are great, thank you!

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I just got back from the AT&T store and paid for a new modem because they said mine was defective (Red power light / green wireless light). I tried the new power cable on the old modem and it worked immediately. I then got on and found this website... Hopefully they will let me return the new modem so I can bo buy a $10 power adapter - REDICULOUS!

Posted on Jul 10, 2009

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AT&T should issue a recall for the power cords. Perhaps they have, but I have no communications on it. I have been on the line with AT&T technical support many times over the last two years on this issue. They told me they have no knowledge of recalls on equipment that they are providing technical support for. I told them that that was very unprofessional and that it should not take over a year to take decisive action to address a well known blunder which is entirely their own fault. So, one solution is for AT&T to do the right thing - they should fix the problem that they created and use the technical support line (and email, etc) as a means of communicating this solution to the millions who are experiencing or may experience the same problems we have with faulty AT&T equipment.

Posted on Jan 19, 2010

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I had the same problem with the modem. I got a Power Adapter 5VDC - 2000A from RadioShackfor $32 and solved, again I have internet. ATT knows the problem with the adapters but what they want is to sell the modem for more than $100 including S&H again!! they are... something else!!

Posted on Jul 08, 2009

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Both my brother's modem and mine did the same thing within two weeks. In both cases it was the power cord.

Posted on Jul 13, 2009

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I had the same problem (red light), tested the transformer/powercable and it seemed ok. I bought a new modem/router ($100) and found that my old modem/router worked fine with the new transformer/powercable I returned the modem to ATT bought a 5V transformer from an electronics store for $29 hooked it up and everything was fine (green light). The guy in the electronics store said he sells about 50 a month just to replace these crappy transformer/powercable

Posted on Nov 28, 2009

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Just had the same problem with my 2wire (red light, then dead) and thanks to this website avoided getting a new modem. New problem: The ATT online store has the replacement power supplies on back order, there is nothing and they can't even tell you a delivery date! Best of all: After you place an online order and get a frustrating email they don't let you cancel the order. So DON'T ORDER THE POWER SUPPLY FROM ATT. I saw that Amazon has 2 links to outside vendors for the original, but would you trust this piece of cheap **** again? Better go for the PSP power supply or something more expensive from Radio Shack....

Posted on Nov 11, 2009

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Get a AC adapter from a place like GAME STOP ask for the Sony PSP AC adapter it is only $16.00 everywhere else I looked was selling them for $30.00.

Posted on Dec 12, 2009

  • joesant May 19, 2010

    AT&T is selling a replacement power cord for around $10.00 which is now cheaper than the psp replacement cord.

  • joesant May 19, 2010

    AT&T is now selling replacement power cords for the 2wire problems and now they are cheaper around $10.

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If you know what your router key code is (you should have it written down somewhere) you can try a "hard reset". On the back of most 2wire router/gateway cases is a small hole about the size of a paper clip wire. Straighten out a paper clip, and push it into the hole until you feel a "click". Hold it there for 30 seconds. This will reboot the routers OS. WARNING!! If you don't know all the setup items, such as the key code, user name and password, etc, don't do it!

Posted on Apr 02, 2009

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Perfect! Thank you to all who posted regarding the AC Adapter solution to this issue. I went to GameStop this morning, purchased the PSP AC Adapter for $15 and the problem is solved.

Shame, Shame, Shame on AT&T!

Posted on Jun 21, 2010

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I had the same issue. It was working fine and suddenly around 12 midnight it stopped working. I thought ATT must be doing some maintanence. Next morning the issue kept on. Call ATT and they said that with the power right staying RED my modem is gone bad and I need to buy a new one and transferred me. The other rep on phone said I had to buy and I was unhappy so asked them to put me back to account specialist. I was surprised as the account specialist told me that it could just be faulty adapter and to try with Radioshack. I was surprised that ATT rep suggested this. I hung up and used my IPhone to do a search and came across this thread as well. Lucky for me I had a spare Radioshack multiple volt power adapter which I had in my car to return. I plugged that In and voila... all is back. Thanks to this thread and ATT rep for suggestion.

Posted on Jun 11, 2010

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Thanks a lot for the post. It saved me $100. In my case, the power light was flickering between red and green - it was not solid red. And wireless light was solid green. No other lights were on. Got Sony PSP AC adapter from GameStop and 2WIRE modem is now working as great as ever before. It cost me $14.99+tax.

Posted on Mar 16, 2010

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You guys were 100% correct, the power cord is most definitely the issue.I went to Gamestop and purchased the PSP powercord, plugged t in and the router works perfectly.I brought the router with the original cord and the new PSP cord to the AT

Posted on Feb 05, 2011

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Thank you guys for all these posts!! i'm just having the problem right now and my modem is about 2 years old, i already called att and they said that the modem is the problem, but after reading these posts its probably the power cord! i'll run to gamestop tomorrow and get the psp adapter, hope it will solve my problems!! thanks guys!

Posted on Apr 07, 2010

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Everyone's posts are great here. Basically, as we all not AT&T are all ASSH*OLES. Go to your nearest Game Stop, Exchange, or I guess Radio Shack. Pick up a 5v adapter, mine is Sony, cost: $10. Recycle your old adapter at your nearest Staples (they also recycle plastic bags). Plug here in and WAH-LA. Save your self a new modem and the time it takes to troubleshoot over the phone with the morons over at AT&T. Good luck!

Posted on May 18, 2010

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I did the PSP adapter and can verify it works. Thanks to the guy that came up with that, I didn't have the $100 for a new modem. AT

Posted on Sep 11, 2010

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I had this same problem - my modem worked perfectly for 2 years, and one morning it just stopped working, witht the power light staying red and the wireless light staying green. Bought a PSP power supply, seems to work fine now.

Posted on Nov 21, 2009

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What if the dsl light only goes from green to red and none of the other lights flicker or go off. could it still be the power supply? because it doesn't seem like it's losing power.

Posted on Oct 22, 2009

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Att 2 wire modems power light was red and wireless light was green called att and they said modem was bad.....(i have had mine for a year and a half) but did a little research and all it was the power supply witch i went to Game Stop and got a power suppy (psp hand held game system willfit and correct output voltage) a 15.00 dollar fix compared to att 100.00(modem)+20.00(shipping)=att is trying to make some money....

Posted on Nov 28, 2009

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Same issue, looked through my son's junk drawer. Found the PSP power supply. Connected to modem and internet back in service. Replaced modem about two years ago, pretty sure power supply was the issue with it too. ATT $100 con.

Posted on Oct 10, 2014

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Same problem, same solution !! I had in my modem the power light on red and then it was dead!!! I just plug the psp adapter to my 2wire and save me a lot of troubles!! Thanks to everyone that post their comments about it!!!

Posted on Jul 17, 2011

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I had the exact same problem with a modem that was only 6 months old. Went to my local Game Stop and bought a PSP replacement router, it fits the port and it's also a 5 volt adapter, like everyone says. My modem is now working perfectly!

Posted on Sep 20, 2010

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Same issue, and a new $10 power supply was the fix! Did NOT need a new router.

Posted on Sep 18, 2010

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I realize the last post on this thread was over two years ago, but I'm adding my comment nonetheless to let people know this is still a viable solution.
Unlike most people here, I was one of the lucky ones. My 2Wire DSL router from AT&T lasted 7 years before I saw the same set of alternating red and green lights. I thought I was going to have to drop another $100 on a new router. AT&T charges a flat fee of $75 for a wired router and $100 for one with built-in Wi-Fi. Glad I found this thread.
As others have pointed out, you can't even get a 2Wire router anymore. So I thought for sure I was hosed. Not so. I went to AT&T's online store and saw that they still carry the AC power adapter for these routers, and yes it's only $10. It ended up being $10.90 with tax and free two-day shipping.
My power cord just arrived today. I plugged it into the router and within about 30 seconds I was back online again at home. All my wireless devices were instantly back online again as well.
Finding this thread saved me over $90 plus the hassle of setting up and configuring a new DSL router and reconnecting multiple wireless devices.
So as of March, 2013, you can still buy these power cords online right here.

Posted on Mar 12, 2013

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When

Posted on May 11, 2012

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Same prob here called my buddy he had a xtra one changed the power supply
and and im up and running again

bigblock bill 3/23/2012

Posted on Mar 23, 2012

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My 2wire was blinking green, then red intermittently, then back to blinking green. This seems to mean it's not working or it's resetting. AT&T went through troubleshooting steps with us, and finally said that we need to buy a new modem through them, which is over $100. We had already bought one a little over a year ago and now it doesn't work again. In my experience, modems don't expire as quickly as these crappy 2wire ones.
I searched online for a cheaper solution. One possible problem is that the power adapter is crappy. Gamestop's PS2 power adapters do not work with the 2wire anymore, it seems. I searched at Radio Shack and Best Buy - same result. AT&T seems to have wisened up to this and changed the connector size. You have to match up the connector and the voltage. I bought a 2wire power adapter on Amazon for about $15 (shipping already accounted for) and plugged it in. Our internet is now working again, saving us over $100.
THANK YOU.

Posted on Feb 02, 2012

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I had the same problem. $10 replacement cord solved the problem.

Posted on Oct 09, 2011

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Completely true! if your 2WIRE AT

Posted on Aug 05, 2010

  • cbrendan56 Oct 08, 2010

    This is insane, although my 2Wire router/modem is 2 years old I got the red light (power) and green wireless LED lit up, called At

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Okay this isnt exactly a solution but im having the same problem but i just bought my 2wire like 3 months ago and most of the solutions on here is that if your 2wire is about 2 years old this happens mines is only a few months old....so why am i having this probleem ?

Posted on Dec 15, 2009

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I had the red light on problem. Power supply was the issue. $10 from the AT

Posted on Apr 20, 2011

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Had the same red-light problem, and sure enough it was the power cable. I picked up the USB AC converter for PSP at Gamestop for $14.00. It was up

Posted on Sep 09, 2010

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My at&t 2wire router dsl and internet light flash red often every 1 to 5 min


Hello, there could be a few things causing this problem. The router could be defective, or just died or you may not be getting enough power over your line from ATT. I would call ATT and ask them to test your line and see if everything is working properly. If it is, then you need to replace your modem/router. Any Dsl Modem and Wireless router will work.

Thanks for using FixYa!

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Red power light, green wireless light, no internet access. Have done the reset and the power off. Nothing works.


I had the same problem on the Gateway 2701HG-B supplied from ATT. From searching the web, I learned these variety of modems apparently have an expiration date on the power cord at abotu 18 mos to 2 years. Mine is almost exactly at 2 yrs.

I replaced the power cord and now it works fine. You can order the OEM replacement from att e-store or try Radio Shack for a universal cord.

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I had the same problem on the Gateway 2701HG-B supplied from ATT for use with their DSL service. From searching the web, I learned these variety of modems apparently have an expiration date on the power cord at about 18 mos to 2 years. Mine is almost exactly at 2 yrs.

I replaced the power cord and now it works fine. You can order the OEM replacement from att e-store or try Radio Shack for a universal cord.

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this happened to me and it turned out the power cord had gone bad. i went to radio shack and bought a new one for 35.00usd and it powered right up.

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Its Due to AC adapter capacitors. Capators dry out after certain usage that cause unfiltered output of DC. Add about 2 or 3 pieces of 1000uF capacitor on DC way issue will be resolved. Or simple change the capacitors in AC adapter or change the AC adapter to new one.

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Hi,

If you are att customer, you will be charged $60 only if there is problem inside your premises, otherwise they wont charge you.

Is there any phone connected with your DSL line? if so is it working? if its not working, contact customer support and tell them its not working

If the phone is working, you have to check the connections between the phone line to the modem. As the DSL light is blinking red, its the problem with line and not the modem.


Take care

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