| ATT DSL keeps dropping connection What would cause my ATT DSL Internet to randomly drop connection?
This random connection drop occurs sometimes once a day or at least several times a week!
I/we use our Internet every day and for many hours every day.
How can I go about finding the culprit, or at least understand the problem?
Please keep any explanation simple for I am a NON expert average consumer/user.
I have ATT DSL PRO with Speed Stream Modem and Asus RT-N66U Router.
Everything is set correctly AFAIK and generally works well MOST of the time, with the exception of "out of the blue" unexpected random dropped connections!
This then requires a re-start of Modem and Router by turning off each (button(s) in rear,
then turning back on Modem first, followed by the Router after the DSL solid green light appears on front of Modem, in order to complete the "Ethernet" connection light on the front of Modem. Finally after the "Internet" and "Activity" light starts blinking and syncing, I get all 4 steady green lights on the Modem and Router shows normal lights, I am ready to go again!
I have updated the Firmware of the Asus Router to the latest revision recently, and can
NOT find anything amiss in the Router`s software Interface or settings. I have not looked at or changed anything in the Modem`s settings, software or Interface since I first received it from ATT many (?) years ago.
Thanks for any insight into this issue. |
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 d_lBarsoomPremium,MVM
join:2002-12-08
Reno, NV
kudos:7 | Which Speedstream modem version?
Your description indicates that the modem is making the PPPoE connection, correct? Have you determined if drops are due an interruption of DSL sync or simply loss of the PPPoE connection?
Can you access your modem stats?
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TCE Weather -- Mt. Rose Cam |
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1 edit | Hi and thanks for your reply
Modem is SpeedStream 5100
On Modem`s "Internet Connection Configuration" page it says: PPP on the Modem (Public IP for LAN). Also says Protocol PPPoE
On "PPP Location" page it says: PPP is on the modem.
Under "Home Network Configuration" it says: DHCP Lease 0 Days, 0Hours, 10 Minutes.
How do I determine "if drops are due an interruption of DSL sync or simply loss of the PPOE connection"?
Edit: corrections |
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d_lBarsoomPremium,MVM
join:2002-12-08
Reno, NV
kudos:7 | reply to mattrixx
With the power LED, there are five LEDs, right? Then you have a 5100b and checking the modem stats: »AT&T Midwest/Ameritech FAQ »Where are the Line Stats in a 5100b or 4100? would give some info about the drop causes.
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TCE Weather -- Mt. Rose Cam |
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| Is this "normal" for PPP on the Speedstream 5100B Modem, and PPPoE Protocol?
Connection is UP, with 4 solid Green lights (Activity light blinking) |
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 wayjacPremium,MVM
join:2001-12-22
Indy | Can you post the contents of the log page? |
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| Thanks
Here you go, attached as a .txt file.
I hope this will help determine what the problem might be, cause I have NO idea how to interpret this modem log. |
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wayjacPremium,MVM
join:2001-12-22
Indy | The log looks okay.......
I would like to have a look at the dsl line stats, click the statistics button and paste the
Modulation
Max Allowed Speed
Signal to Noise margin
Line Attenuation
CRC Errors
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| Nothing here that I can report? |
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wayjacPremium,MVM
join:2001-12-22
Indy | Ohhhh that looks bad...
Have you rebooted the modem?
Have you tried connecting the modem at the nid when it's like this? |
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| By rebooting the modem do you mean turning off and then back on (button in back)?
If so yes, when I have dropped connection.
No I have NOT "connected the modem at the nid when it`s like this?".
If this is a "bad" indicator, how is it I am still connected online? |
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wayjacPremium,MVM
join:2001-12-22
Indy | said by mattrixx:By rebooting the modem do you mean turning off and then back on (button in back)? Just turning the modem off then on is a reboot
said by mattrixx:If this is a "bad" indicator, how is it I am still connected online? The page image makes me think there is no internet connection. And I still would too see the dsl stats before offering any suggestions
I don't have access to the modem so I can only speculate about what is occuring/ |
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| Thanks, but I can assure you I DO have an Internet Connection (at this time), but one last thing to look at might be this screenshot of a portion of the modem`s "Technician Readout". |
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wayjacPremium,MVM
join:2001-12-22
Indy | said by mattrixx:Thanks, but I can assure you I DO have an Internet Connection (at this time) Ok, The log indicates that the modem or router is slow to acquire the public ip address when the connection goes down. I suggest that you try changing a setting on the modems connection configuration page.
At the bottom of the page select
No, use private IP address
And save the change this should reduce the amount of time the internet is down
I won't tell you that replacing the modem will stop the internet connection drops.
Something is not right with the modem you should consider replacing it. |
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| OK, thanks again wayjac.
After saving the "No, use private IP address" setting, wouldn't I necessarily have to provide
a private IP address?
Also, so as I understand it, this "change" is just going to reduce the time I`m back up online automatically, when and if the connection drops, without actually physically rebooting the modem (and Router) ?
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d_lBarsoomPremium,MVM
join:2002-12-08
Reno, NV
kudos:7 | reply to mattrixx
If you are still connected to the internet without the modem ever showing no DSL sync stats, I'd say your modem is in the process of dying. ... but it doesn't look as though sync losses are dropping your connection.
The DHCP server at times isn't updating the modem and the Smarttimeout is invoked dropping the connection.
--
TCE Weather -- Mt. Rose Cam |
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wayjacPremium,MVM
join:2001-12-22
Indy | reply to mattrixx
said by mattrixx:After saving the "No, use private IP address" setting, wouldn't I necessarily have to provide
a private IP address? No, you will not need to provide a private IP address
The modems dhcp server will do this automatically
said by mattrixx:Also, so as I understand it, this "change" is just going to reduce the time I`m back up online automatically, when and if the connection drops, without actually physically rebooting the modem (and Router) ? I'm thinking this change will allow the modem to fully
reestablish it's internet connection without a reboot of the modem
or router.
I think this will help because the log indicates the public ip address is not renewing as quick as it should.
Here's some example messages:
Last DHCP Server message repeated 206 times.
Last DHCP Server message repeated 2860 times.
|Last DHCP Server message repeated 12 times.
|Last DHCP Server message repeated 567 times.
The dsl sync speeds are normal
The dsl is set to fastpath |
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d_lBarsoomPremium,MVM
join:2002-12-08
Reno, NV
kudos:7
2 edits | reply to mattrixx
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wayjacPremium,MVM
join:2001-12-22
Indy | I don't think updating the firmware is something that should be attempted with a "dying" modem it could kill it, left as it is it's working.
I can provide a copy of the firmware
There is a chance the router is the cause of the delayed exchange problem
I say this because the modem is attempting to allocate the ip address but the router won't accept it. |
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d_lBarsoomPremium,MVM
join:2002-12-08
Reno, NV
kudos:7 | 1.0.0.36 firmware had problems with the DSL stats and DHCP. |
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