In reply to a post by ukwiz:

They did suggest that I cough up £30 for a block of 5

Is that a one-off cost? If so, probably the easiest way to solve it.

A replacement IP may or may not resolve the issue...it is the difference that is underlying when you use the different log in, i.e. routed over different backhaul infrastructure most likely

Some providers do split their traffic based on IP blocks and route it differently, so again you would need to look at the differences.

Blindly asking an ISP for a new static IP address will almost always generate the response you got, but questioning why the routing is different for the different logins should trigger more of the thought processes

In reply to a post by RobertoS:

As you are using a Fritz router that probably has the same defence. What happens to your IPv4 BQM if you disable the IPv6 one?

Yes, I am sure it has the same defence, but I have tried with no ipv6 enabled, and the ipv4 doesn't change

In reply to a post by ukwiz:

In reply to a post by PaulKirby:

Ouch.

Not too sure if anyone has asked this, but your BQM IP Address used.
Is it an IPv4 or IPv6 Address?

TBB might auto detect the IPv6 address, In my BQM I am using a domain address that points to an IPv4 Address over my own DDNS Server due to BT refuse to give me a Static IP.

The address is an ipv4 address. I also have a monitor on my ipv6 address - which shows no problems

That is strange.
They are not using CGNAT on that static IP are they? they are proably not, I know I had to op out of it with BT due to things were breaking etc.

In reply to a post by ukwiz:

In reply to a post by PaulKirby:

Have you also tried a different Modem / Router, I know I had issues with routers on my connection which had loads of Packet Loss on my FritzBox which I am not seeing at all on my new Linksys WRT 3200 ACM.

The FritzBox cannot cope with more than 1 or 2 monitoring sessions, at a time. According to AVM:

A mechanism in the FRITZ!Box protects against a threat of a so-called "denial of service (DoS) attack" that only allows a defined number of ICMP packets (e.g. "pings") to be replied within a certain time frame and discards the others

You haven't answered my question, have you tried another Modem / Router ?
My younger brother uses a FRITZ 3390 I also used the same when I had ADSL2+, I then got a Fritz 4040 which is suppose to have a 1Gbit throughput, sadly that got Packet Errors every X Hours after about 10 days, where as my Linksys WRT 3200 ACM works fine.

Don't get me wrong I still love the Fritz boxes I have and the issue with the packet loss I was receiving might of just been that same protection you mention due to everything else was fine.

Paul

In reply to a post by ukwiz:

In reply to a post by PaulKirby:

While the user is responsible to what they use the IP for, if there is any issues then the ISP should all possible tests to resolve the issue and if changing the IP resolves the issue then great.
If not than change it back to the old one and look into other possible reasons what could be causing it.

I used a test id from Zen to check, and suddenly there was no packet loss. That was when I asked for a replacement ip which was turned down

Not sure what a Test ID is, so I cannot answer that one.

The way I see it, if you are having issue with a service that you are paying for they have to resolve the issue.

What's it say in the T&C?

Paul

We don't in fact know that the OP is actually suffering from packet loss. Only that his router may be failing to respond to some (lots of) IPv4 ICMP pings.

I'm not sure how we could check for real data loss. DSLAM-side retranmission stats perhaps?

In reply to a post by RobertoS:

We don't in fact know that the OP is actually suffering from packet loss. Only that his router may be failing to respond to some (lots of) IPv4 ICMP pings.

I'm not sure how we could check for real data loss. DSLAM-side retranmission stats perhaps?

I know, I was just saying if there "was" an issue then the ISP "should" look into it.

As for the router, that's a possibility, I know my Fritz 4040 suffered with packet loss when using the BQM, even though the connection was fine.
That was why I asked the OP if they had tried another router.

Paul

In reply to a post by ukwiz:

In reply to a post by RobertoS:

As you are using a Fritz router that probably has the same defence. What happens to your IPv4 BQM if you disable the IPv6 one?

Yes, I am sure it has the same defence, but I have tried with no ipv6 enabled, and the ipv4 doesn't change

If you capture the traffic on the internet interface and analyze the results in Wireshark, you should be able to see the source of the pings.

http://fritz.box/html/capture.html

Simon.

Zen is NOT using CGNAT

The most likely explanation if poster is not seeing this variation when they do a ping string from a PC, is the DoS protection on the Fritzbox When using a test connection is may not have been up long enough for the DoS protection to kick in.

In reply to a post by MrSaffron:

The most likely explanation if poster is not seeing this variation when they do a ping string from a PC, is the DoS protection on the Fritzbox When using a test connection is may not have been up long enough for the DoS protection to kick in.

The OP has more than one BQM pinging his usual IPv4 address. Perhaps the other was set up by Zen, or a F8Lure one he has forgotten about or a previous user of his IP. A Wireshark capture will confirm.