DSL Disconnect AFTER phone call

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fishlaw

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Jan 10, 2012
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I have a continuing mystery. My DSL shuts down about 15 seconds AFTER I hang up from a phone call and takes about a minute to reset. For some time, I have noticed that every time I hang up from a call, the line busy button lights up on my about 15 seconds after I hang up, but lights for only a few seconds, although there is no call being made. We have frequent short term losses of DSL service. When I moved my AirPort router near my desk recently, I learned our internet interruptions coincide with this phone phenomenon. It does not happen if I just pick up the phone and hang up, it is only after an actual call has disconnected. And during the period of the interruption, I can still use my phone without problem. I have only two devices plugged into my phone system-my phone and my DSL modem. Even if I unplug my phone(which is a cordless base unit) immediately after I hang up (both power and TELCO), or plug in a different wired phone,I still have an interruption of the DSL. It doesn't matter what type of phone is plugged in (Wireless or wired) or where they are plugged in within the house and it affects my wired internet service, so wireless is not an issue. Any thoughts?
I have replaced the DSL filter.
(I also live on the ocean, so corrosion of exterior connections is always an issue).
 

etaf

Wayne
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Oct 2, 2003
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65,442
i would have thought of the filter first - otherwise a line issue - unless the modem has a fault of some kind

Are you connected to the main telephone socket or on an extension - if an extension can you test it on the main socket
 

fishlaw

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Jan 10, 2012
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4
Filter is fine-was replaced with no difference. I am on the main line. The line does this momentary disconnect after every call, even if only one phone is plugged in and no filter for DSL modem in the line-the line busy light comes on for a second or so after a call disconnects. I am thinking it is a central office issue.
 

etaf

Wayne
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did you get this issue resolved - it does sound like a line issue now
 
Joined
Jan 16, 2012
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I had the exact same problem once, despite a filter being installed too. Turns out the filter had to be in elsewhere in the stream (can't remember where now). Like, instead of the filter being just before the phone handset, I put it at the wall outlet instead, or vice versa. So, try moving it elsewhere and it should solve it.
 
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21,334
THe filters need to go directly between the phone and the wall jack. You do not need a filter on the DSL modem at all. Any other devices like a fax also need a filter at the wall jack.
 

fishlaw

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Joined
Jan 10, 2012
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I have only the modem and a phone, with a new filter, attached. Doesn't matter what phone I use, it still does this brief disconnect 20 seconds or so after I terminate a call. I have concluded it has to be a central office or line issue.
 
Joined
Jan 16, 2012
Messages
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Okay, so you've tried different phones, but have you tried moving the filter somewhere else? If not, try it. It doesn't work if it's installed in the wrong place of the connection.
 

fishlaw

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Jan 10, 2012
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Yes, I have tried that as well. Even if immediately after the call I disconnect everything except the modem, the line still disconnects for a second and resets the DSL modem.
 
Joined
Jan 16, 2012
Messages
131
No worries. Just wanted to make sure. Try another filter if possible too; I once tried a different one that I also thought was "working" but it was, in fact, also faulty.
 
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