Slingshot ADSL2 Dropping Out

Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › Slingshot ADSL2 Dropping Out

Oubadah

676 posts

Ultimate Geek
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#169794 26-Mar-2015 00:15

For the last few weeks my internet has been extremely flaky.

There was a period of about half a day where I could access some sites and not others, then it worked normally for a few days, but recently it's been really bad. The connection will drop out altogether. It seems to happen mostly in the evening/night, where it will work for ~15 minutes, then drop for ~5 minutes, then work for another ~15 minutes, then drop for another ~5 minutes , and continue this cycle until I give up and go to bed. I was going to try and find my spare modem, but I noticed that my public IP was changing every time the connection dropped, so it must be some external issue right?

I live in Birkenhead/Northcote area, Auckland.

PeterReader

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#1268002 26-Mar-2015 00:15

Hello... Our robot found some keywords in your post, so here is an automated reply with some important things to note regarding broadband speeds.

If you are posting regarding DSL speeds please check that

- you have reset your modem and router

- your PC (or other PCs in your LAN) is not downloading large files when you are testing

- you are not being throttled by your ISP due to going over the monthly cap

- your tests are always done on an ethernet connection to the router - do not use wireless for testing

- you read this topic and follow the instructions there.

Make sure you provide information for other users to help you. If you have not already done it, please EDIT your post and add this now:

- Your ISP and plan

- Type of connection (ADSL, ADSL2, VDSL)

- Your modem DSL stats (do not worry about posting Speedtest, we need sync rate, attenuation and noise margin)

- Your general location (or street)

- If you are rural or urban

- If you know your connection is to an exchange, cabinet or conklin

- If your connection is to a ULL or wholesale service

- If you have done an isolation test as per the link above

Most of the problems with speed are likely to be related to internal wiring issues. Read this discussion to find out more about this. Your ISP is not intentionally slowing you down today (unless you are on a managed plan). Also if this is the school holidays it's likely you will notice slower than usual speed due to more users online.

A master splitter is required for VDSL2 and in most cases will improve speeds on DSL connections. Regular disconnections can be a monitored alarm or a set top box trying to connect. If there's an alarm connected to your line even if you don't have an alarm contract it may still try to connect so it's worth checking.

I recommend you read these two blog posts:

- Is your premises phone wiring impacting your broadband performance? (very technical)

- Are you receiving a substandard ULL ADSL2+ connection from your ISP?

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jords12

144 posts

Master Geek
+1 received by user: 13

#1268007 26-Mar-2015 00:27

Our connection is usually pretty stable, but been having a few dropouts recently. Right now it's dropped completely and unable to reconnect - ADSL link is ok but PPP failing. Started happening a few minutes ago.

richms

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#1268009 26-Mar-2015 00:59

Check the router uptime, and compare the DSL stats when its working each time. If its a line problem then they will usually be quite different each time it syncs, and the noise margin will deviate from the 6 or 12 target value.

Router reboots are usually not the ISPs fault.

Richard rich.ms

Oubadah

676 posts

Ultimate Geek
+1 received by user: 12

#1268519 26-Mar-2015 16:53

richms: Check the router uptime, and compare the DSL stats when its working each time. If its a line problem then they will usually be quite different each time it syncs, and the noise margin will deviate from the 6 or 12 target value.

Router reboots are usually not the ISPs fault.

The router was never dropping. I'm now 100% sure this has nothing to do with my modem or anything downstream of that. I swapped out my modem and router for a spare TD-8840, and the exact same issue is present.

I couldn't easily monitor the DSL stats before, as I couldn't access it's page through PFSense, but now with the TD-8840 here are some stats from the most recent cluster of drops:

1: Immediately after recovering from a drop.
2: Immediately after recovering from second drop.
3: After working 'normally' for a while between drops.
4: Immediately after recovering from third drop.
5: After working 'normally' for a while after third drop.

I also happened to have a screen cap of these stats from this same TD-8840 dated April 2014 if that helps at all:

The only other this before the demarc box that I can troubleshoot is the master splitter. That couldn't be causing this could it?

webwat

2036 posts

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#1275663 1-Apr-2015 19:48

sounds like your modem is not causing the resyncs because you have proved it out with another modem. The connection doesn't look all that great but still quite ok. Do you have a master filter installed or just inline plug-in filters on each telephone? Do you have anything plugged into the phone line (apart from the modem) that isn't on phone side of a filter?

Time to find a new industry!