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Old 05-10-2016, 08:19 AM   #1
steelheat
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Question I'm Having modem problem and need some help!


I have searched LQ Linux Answers > Networking and for similar problems with the Comtrend modem.

I have a question to ask but first off, I'm just not a modem router person, I just don't get understand no matter how hard I try. If there are well defined pictures or well defined instructions it's a hit and miss for days until I get it right!

Now that that's out of the way, my modem, a Comtrend modem acts like it just stops working when it gets warmed up. The red light comes on and that's it, no Internet! It is okay for about the first fifteen minuets then is stops work red light comes on. After about five minuets it starts working again. This can go on for sometime.

I installed a ASUS RT-AC66U Dual-Band Wireless-AC1750 Gigabit Router first of 2014. It took me over a week to get it connected, and I have no hair left, no more barbershop trips!

I've never had any problems until now with this modem or router. As I recall, when installing the router I just followed the instructions for the router from the diagrams and hooked the modem before the router.

I'm getting to the question........ I have a 2Wire modem that worked fine when I used it last. Why can't I just remove the Comtrend modem and put the 2Wire in it's place. All the connections are the same.

As I recall every time I connected the 2Wire I always booted to the AT&T modem setup website. I use to have AT&T Internet service. I'm sure I'm going to have that same problem again, I think it's built into their modems.

So, how or where can I get instructions on connecting the 2Wire modem and avoiding AT@T, and use the 2Wire modem?

Please keep it simple! Thanks for all the help I get from LQ!
 
Old 05-10-2016, 10:00 AM   #2
michaelk
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I would call your ISP. They should be able to perform some diagnostics checks but it is possible the MODEM is failing and probably should be replaced.

I don't know but I would guess the AT&T MODEM is not compatible without changing its firmware.
 
Old 05-14-2016, 07:04 AM   #3
steelheat
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Quote:
Originally Posted by michaelk View Post
I would call your ISP. They should be able to perform some diagnostics checks but it is possible the MODEM is failing and probably should be replaced.

I don't know but I would guess the AT&T MODEM is not compatible without changing its firmware.
I'm sorry michaelk, for taking so long to get back to you but I wanted to wait another day to see how things were turning out.

Okay, here's where I stand for the moment: I contacted my ISP and ask about doing a diagnostics check, and they went thru my set-up with me, over the phone. In doing so they had me remove a AT&T line filter that's been on the phone line for I don't know how many years! So, far this is stating day 3 and I have not had one hiccup, red light or stoppage of any kind.

My ISP told me the line filter will "stress out" the modem, who would of thought!

I have used 2 different modems on this same line/filter, and AT&T is the ones who told me the filters had to be installed on all my phone outlets thorough out the house, especially on this modem line when they set me up for Internet service!

A side note: AT&T will not give any help to Linux users. Don't dare call their tech number, all you'll hear is "what is Linux, never heard of it, what version of windoz are you using"! While in this discussion on trying to get connected they repeatedly ask me: "you did install the line filters we sent you, right".

Long and short of it, I'll give it a week then I'll come back and post "Solved" if that's the case.

I did not ask about the AT&T MODEM, if I have to call them back I will at that point and if it's like you said, and I'm sure your right about the firmware I'll just buy another modem.

Thank you for taking the time to help me out!sh.
 
Old 05-14-2016, 07:42 AM   #4
michaelk
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Glad it is working.

Yep, I'm sure your ISP told you the filters should be installed on all phone devices except for the MODEM. They are supposed to filter out the DSL signal so it does not interfere with your normal telephone conversations etc. It will definitely mess up a FAX machine for those that still use them.
 
  


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