Tip & How-To about Computers & Internet

Intermittent Sync and you: What does it mean?

Intermittent sync is the signal from your DSL, Cable, or Fiber service provider's Central Office (CO) to you losing connection every now and then. Now, with DSL, this also includes low bit rate (where the modem throttles the connection to try and maintain the connection), intermittent route (you can't get online if there is no signal!), and slow throughput/ packet loss.

With Fiber, it can mean a damaged fiber optic cable, or potential area outage.

Cable does not usually experience low bit rate/ intermittent sync like DSL, however it does have some similarities since Cable does run (at least a portion of the cable!) on copper cabling.

Intermittent Sync can be an area issue, however usually area issues are no sync or no route- not the intermittent problems

Now, an intermittent issue is hands-down the most annoying of connectivity problems since sometimes it works, sometimes it does not.

How do you troubleshoot intermittent sync?

Depending on your connection type, you may need to isolate the connection. What this means for DSL is if you have a phone, a fax, and a credit card machine on the same telephone line, you need to see if the intermittent issue clears with those devices off the line. Other factors for DSL intermittent sync is distance from the CO, age of the modem, issues on the line, and problems within the CO

If you have noise on the line- it could either be the modem or something within the cabling or CO.

With Cable, isolation is not so much of an issue- although they may ask you to remove the cable boxes temporarily till they can verify the issue is not interference from a defective cable box

Fiber (FIOS) is unique that intermittent sync is not really caused by issues w/ the wiring of the building- report to technical support immediately if you have intermittent connection issues with Fiber.

All of the above issues need you to contact tech support when you have time to do basic troubleshooting steps. However some legwork can make this process easier.

Write down when it goes down- if there is a pattern to when it goes down, it can help narrow down WHY the problem is occurring. For instance, a person had service go down after 9am every day and when it was raining. The issue was caused by construction breaking the underground cable casing- and after the sprinklers ran at 9am sharp- the water would get into the casing and short the person's connection!

A log of what happens with the problem not only helps you- it helps you help the technician! If you can pick up on the pattern- it narrows the possibilities of what's causing the issue. Any way of narrowing down the problem means you will have your service restored that much faster.

If it requires multiple repairs- that log will also help in narrowing down what's left

For packet loss/intermittent route- record what sites have the issue and when. Again, the pattern helps troubleshoot the problem.

Do not demand for a technician at the location- often the problem could be in the CO- sending a tech only delays getting to the right spot to fix the problem

If your connection goes down- the MOST important thing to do: Report it. With intermittent issues, the more documentation, the better.

Posted by on

Computers & Internet Logo

Related Topics:

Related Questions:

1 Answer

I request 1 meg in the company is coming and I only 128kbps I should do to increase the ip to 1 mega


must have a dsl service.... sadley most dsl service is fed off a network that was built 100 years ago and designed for phone service. your service will be good and reliable if your close to the "CO" or central office. otherwise, you will find your self calling again and again till they finally admit there is nothing they can do or you will just deal with it. some of the providers are starting to try and upgrade to fiber backbones which will essentially (hopefully) make you closer to the "CO". I, personally, had to move to be in a cable providers territory. only problem with that is their minum speed is 25M and it cost about $25 more per month.

Nov 21, 2013 | Computers & Internet

2 Answers

Intermittently lose internet connection with my Westell 7500 DSL Router. Power, E4 Port, Wireless and DSL LEDs stay on but the internet LED goes out. Verizon has replaced the router but the problem remains. All internet connection is lost fom both my PC and wireless devices until I either power cycle the router or login and manually connect. Any suggestions? Thanks, Greg


hi,

I used to work for verizon for two years as level 3 support,here is the thing,if verizon already replaced the modem,that means that its not really the modem,its the connection,thats what we call intermittent route,here is what you are going to do,contact verizon,have them run an intermittent connection line test,tell them that internet connection is not consistent,they will create an active ticket for you,it will be forwarded to the central office and the central office will run a different test,thats what we call a test assist...they will be able to verify if the problem is the line form the central office going to your house...


thanks and God Bless

Jun 24, 2009 | Westell Wirespeed VersaLink...

2 Answers

I have DSL/verizon,modem 6100F i keep loosing my internet connection


Your problem definitely sounds like an intermittent connection problem. It can either be one of two things. #1. You have a defective modem, or #2 It's a network problem. I will definitely go with #2. Here's the thing. The problem you have is very very very common not only to Verizon DSL customers, but also to other Internet Service Providers as well. The best way to fix the problem is to understand what's causing the problem. There are two types of intermittent connection problems. The first is Intermittent Sync. You'll know if you have this problem because the DSL light will be blinking everytime you get kicked out. That means there's no internet connection, The modem cannot detect and establish a connection with the Central Office. The second is Intermittent route (which I know is you're problem), The DSL light is steady, but the Internet light almost always turns OFF or turns RED. The only way to fix this problem is to coordinate with Verizon. The reason is because the problem is outside your house. The long cable lines, the drop wire, the cables that passes through from the Central Office to your House can all be damaged, If that's the case, then a technician is required to go out and fix the problem. Don't worry about calling Verizon, this is a network problem and you won't be charge for anything. I know losing internet connection is very frustrating. Give your ISP a chance, they will definitely fix the problem if you give them the opportunity to do so.

May 28, 2009 | Westell Wirespeed LiteLine 6100...

2 Answers

I have an AT&T Modem; having trouble with internet connectivity


It is OK to keep putting the UN and PW in. However you shouldn't have to. I suggest having a tech come to your home and have them do a signal test both at your jack and outside with your home unplugged from your service box. If there is a big difference in the numbers then you're simply loosing signal due to signal bleed inside. This is a simple fix. Have them isolate some wires in your jack and place a DSL filter outside. Then your DSL signal will go straight to your modem and not bounce all over your home. This will NOT affect your phone.

Dec 31, 2008 | AT&T High Speed DSL Modem

1 Answer

Intermittent ADSL connection


The DSL light blinking or going out indicates that the DSL modem is loosing sync. This is usually caused by noise on the line. When you get the DSL service you should be given filters to put on all of your phones so that the phones will not interfere with the DSL signal. Those filters need to be attached to anything connected to the phone line that has the DSL on it except for the DSL modem. Other than that the problem could be on the service providers end, something outside your home, or the DSL modem going out. I would suggest that you verify everything is filtered, then contact your service provider so they can run test on your DSL line.

Dec 23, 2008 | Siemens SpeedStream 4200 (13A4200001)...

Not finding what you are looking for?

836 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Loading...