5000ms pings that self-resolves

[phuma]

I have this very frustrating problem where the pings to anything over the ADSL line goes to around 5000ms every now and then and I have high (20 - 30 %) packet loss. I have been unable to pinpoint when this happens - but I'm starting to think it happens when there is nothing happening on the line. I.e. when I get back home sometimes it just looks dead.

Details:
* The line itself is stable - I've had up to 80 days at a time where it does not even resync.
* SNR down = 13.8, SNR up = 23.3
* Att down = 30, Att up = 18.5
* D-Link DSL-2750U
* Rebooting the router has no effect - i.e. the pings stay high
* It usually resolves itself after a while
* It does not happen at a specific time during the day

ping www.cybersmart.co.za

PING www.cybersmart.co.za (196.41.124.23) 56(84) bytes of data.
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=1 ttl=60 time=4293 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=2 ttl=60 time=4304 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=3 ttl=60 time=4501 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=4 ttl=60 time=4579 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=5 ttl=60 time=4607 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=6 ttl=60 time=4652 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=7 ttl=60 time=4720 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=8 ttl=60 time=4803 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=9 ttl=60 time=4829 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=10 ttl=60 time=5007 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=11 ttl=60 time=5261 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=12 ttl=60 time=5564 ms
64 bytes from www.cybersmart.co.za (196.41.124.23): icmp_seq=13 ttl=60 time=5659 ms

 

[Rickster]

try ping saix.net with the telkom free account.

 

[phuma]

I've run mtr while this was happening, and it usually looks something like this. Here it was starting to improve again.

 

[phuma]

Not sure if I was doing something wrong, but I could do nothing on the guest account - I've taken note of the IP of saix.net (196.25.1.204) now, and will ping that next time.

 

[Rickster]

Not sure if I was doing something wrong, but I could do nothing on the guest account - I've taken note of the IP of saix.net (196.25.1.204) now, and will ping that next time.

with the guest account you can only visit www.saix.net

 

[phuma]

Yes - but I could not get to that (www.saix.net) either.

 

[Rickster]

Yes - but I could not get to that (www.saix.net) either.

Doesnt sound right.