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

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

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.

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!

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.

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.

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

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!

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!!

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)

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!

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 ?

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

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....

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.

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....