Hi Tobias,


well, I have seen by lots of customers in area ZH Altstetten, ZH Uni and ZH Seefeld in last weeks multiple interrupts as well as IP changes.
Normally they change quite rarely. So they may change something in their network.

In general I have good performance with UPC.
simply with some prefixes upc is still having problems, may with some upper tier carriers, or whatever - routing is often terrible.... and only via UPC.

most affected are prefixes located in UK. brexit ?-))

e.g. all my tested ISPs have not this issue, but cablecom:

- IaaS provider, 2 prefixes to same datacenter/servers
- prefix A fine (8 hops - 1 hop rfc1918 at cablecom), prefix B goes via USA and back (17 hops - 1 @ccom).

- due to my tests it is not a routing issie by my IaaS provider, simply cablecom goes a complete wired path...
- roundtrip time + > 100ms in case B

- e.g. via sunrise(home) it works fine (9 hops - and 3 are RFC1918 at sunrise... wtf...)
- 5 hops / from nine via swissix to A and B :)


and general:
if you have these black actual cablecom modems, or older ones - a reboot once a month helps..... why ever this device lames with higher uptimes.
horizon was simply a mess....

Cheers
Stephan


2016-08-16 7:24 GMT+02:00 Xaver Aerni <xaerni@pop.ch>:
Hello,
Last week i have had after 1 till 2 hours breaks during downloads. No Server
give during 10 Sek. an answer. After this time it works normal for 1 or 2
hour. We are using a horizon.

Mit freundlichen Grüssen


X. Aerni



Xaver Aerni



Xariffusion Informatik & Telecom
Zürichstrasse 10a
8340 Hinwil
Tel. +41 43 843 78 78
       +1 707 361 68 39
Fax +41 43 843 78 70
xaerni@pop.ch
Web: http://www.pop.ch
            http://www.xariffusion.ch

-----Ursprüngliche Nachricht-----
Von: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch]
Im Auftrag von Erik Rossen
Gesendet: Dienstag, 16. August 2016 06:05
An: Tobias Brunner <tobias@tobru.ch>
Cc: swinog@lists.swinog.ch
Betreff: Re: [swinog] Bad Connectivity at UPC Home Internet

There is a small possibility that you have a hardware problem.

10 years ago I bought a DECT telephone that interfered with my cable modem
if the base station was placed within 50cm of the modem.  Got up to 8%
packet loss when testing with "ping -f" to the gateway IP.

Simply moving the base station to the other side of my desk fixed the
problem.

Did you recently buy something that emits a lot of radio waves?  Do you
frequently pose your mobile phone near your modem?

On Mon, Aug 15, 2016 at 09:24:27PM +0200, Tobias Brunner wrote:
> Hi all,
>
> I'm having a hard time with my UPC Internet at home. Connections to f.e.
> Github are nearly impossible since a few weeks (can't remember exactly
> since when =( ), but when connecting through a VPN (exits at AS57118)
> there are no performance issues other connection problems.
> This connection troubles are not only to Github, but also to other
> random destinations like Ifolor, sometimes Google, sometimes SRF, ...
> I couldn't find patterns at the moment, SmokePing started collecting
> them for me =) (currently it shows huge paketloss, but still have to
> wait some more days for better graphs).
>
> Is anyone else having such issues with UPC home Internet?
>
> Cheers,
> Tobias


--
Erik Rossen
rossen@rossen.ch
http://www.rtfm-sarl.ch
OpenPGP key: 2935D0B9


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