@Lori-77

Where do you see high attenuation? I only see very bad SNR.

FEC are usually not critical, I have several million per day.

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@Streuselkuchen wrote:

@""#338966

😉

….The installation has existed in the condition described for several years, with no significant losses so far.

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That doesn’t have to mean anything…

Oxidized terminals or branches gradually deteriorate…

And/Or installations with branches (bridgetabs) react more sensitively to sudden, external disruptive factors….

@Streuselkuchen

It is quite possible that the construction work is/was an additional problem which has now been the last straw.

You can renovate with a “flying” temporary solution and see what speed you can achieve. However, you may have to be patient for a few days until the maximum speed is reached.

If you don’t reach 200/40, you have to open a fault ticket.

@hed Thanks yup, the Snr is high, I’ve made a mistake.

He should now clean up the first construction site, then if it’s good you can look at the second construction site, which is 300m further away.

Maybe something happened when the new cable was installed.

If a technician came, he would first take a measurement on the UP. And depending on the situation, look in-house or externally, I always believe that you should just finish one construction site at a time and see what happens.

Greetings Lorenz

@Lori-77

I also recommended this order @Streuselkuchen, see #5 and #9.

@Streuselkuchen

You may have achieved a new Swiss record for the worst performing g.Fast-Anschluss in Switzerland -)-)-)

Presumably the switch from VDSL2 to g.Fast did not take place years ago, but perhaps only recently, possibly in connection with the current construction sites?

Before you tackle any major modifications, it would certainly help if you took out a screwdriver and simply disconnected the wires of the 2 parallel sockets from the source (i.e. where they come from).

If the Anschluss then runs for several days without CRC, you can then try to convince the hotline to manually remove the ultra-high stabilization, which the system has automatically switched on in the meantime to save your g.Fast connection, because without manual It will still be months before the automatic system tries again to see whether the Anschluss is working smoothly again at higher speeds.

P.S.: By the way, you currently have a subscription that is too expensive because you don’t even get the services of Internet S and in Kundencenter you can switch the Internet subscription back and forth independently, even several times a day if necessary.

You will then be billed on a daily basis.

@Streuselkuchen I’ll take remote measurements tomorrow and look at the stabilization levels. If you make changes to the house installation, let me know and I will reduce the stabilization manually (which one of our technicians would also do).

In principle, the construction site in the street shouldn’t be a problem, except that our cables are affected. But then the line goes dead. I also check the neighbors to see what’s going on.

And no, unfortunately you don’t have the record for the lowest g.Fast Speed ​​😂

If you have problems like this, it’s always worth calling the hotline (or reporting it online), as it could be a mass disruption or a known problem. This is the only way the cases will be recorded statistically and can be recognized more quickly in the future 😀

Best regards

@Streuselkuchen A measurement shows a BridgeTap somewhere between the UP on the pole and your router. Over time, the speed was continuously reduced by the stabilization so that the line remained stable. At the beginning of January you only had 78mbps and now around 58mbps with very high stabilization.

There are two connections on the glass fuse. The other one at the same address has also been somewhat stabilized and therefore has a loss of around 20mbps with its older box. Otherwise it’s running well.

What seems strange to me is that the two lines take completely different routes to the house. One goes directly to the middle part where the UP is and the other somehow comes in from the right part of the house and then runs inside the house to the UP. Can you find out whether this line goes to terminals 1 or 2 and which one is yours? I’m guessing it’s the one who walks through the house and has an old junction somewhere. This works like an antenna, the interference is caused by, for example, devices with high power requirements. When switching on/off these can cause interference in the DSL signal. Between 07/17/22 and 07/21/22 this happened at least once a day, on 07/18/22 twice. Here are the times:

• 07/17/22: 10:24 p.m
• 07/18/22: 4:19 p.m. and 9:16 p.m
• 07/19/22: 10:48
• 07/20/22: 9:28 p.m
• 07/21/22: 3:45 p.m
• On July 25th and 27th, 2022 you had an interruption, but it was not caused by the line.

I don’t see a pattern. Can you possibly make sense of what could have happened? Switching on an air conditioning system, for example, or another heavy load?

Your other neighbor (not in the same house) also has a line from the same mast, which is also heavily stabilized (he is probably on vacation right now). The other customers in the area are not on overhead lines and are doing very well.

Therefore I suspect there are problems with the UP on the rod, which may have rusted contacts or other issues. It is therefore important that you report the slow speed and frequent interruptions to the hotline. Also mention that the neighbor in 4 also has problems (very low speed) and this can probably be attributed to the Anschluss on the mast. A technician has to take a look at it on site and you can then tell him to take a very close look at the UP on the pole.

In the meantime, it would be great if you could show the route of the second line here.

Best regards

Oops that this even works 😯

I can remember when ADSL wasn’t connected to overhead lines - but that was a long time ago…

I’m curious what my dear colleague Roger thinks about this 😉

@Streuselkuchen Ohhhhhhhhhhjeeeee. I knew from the database that they were twisted pair cables, but that looks bad 😣 The house entry point is not DSL compatible! It works because today we have very good algorithms that have the whole thing under control quite well without interruptions. Nevertheless, we record the interference and reduce the speed so that the interference has as little influence on the signals as possible. Can you please take a picture of the glass fuse?

The only sustainable solution: Replace all lines with new hose cables, convert the distribution on the mast, replace the UP on the pole if necessary, completely replace the house entry points, replace the glass fuses with MX2000 (observe lightning and fire protection requirements). From there, pull (leave) the U72 to the DSL socket. This will be difficult… and expensive.

Preliminary conclusion: You have only had half the speed for a long time, which has now dropped even lower so that the line remains stable. Ev. The router synced to g.Fast after expanding it, but the line and house installation are not suitable for such high frequencies and transmission rates. The checker indicates the speed that is possible with a clean installation (calculated rather conservatively).

Best regards

@Streuselkuchen

U72 is good, the question arises as to whether this line goes from the UP directly (P2P) to the socket where the router is connected and “on the go” or nothing else connected behind it.

Hello @Streuselkuchen, @Roger G

It may well be that he can’t find the glass fuse in the house…

During my time as a technician, I have had several houses where such glass fuses were missing.

I informed customers about the missing glass fuse and also noted it in the report.

But if the overhead line has to pull in a new cable anyway, another route may be chosen where you can get into the house better and don’t have to go through the neighboring building.

Please just remember that if you get the appointment and your cable goes through the neighbor’s house, he will be informed and you will have access so that the cable can then be replaced.

Greetings Lorenz

@Lori-77 But how is lightning protection implemented? An older building, a lot of wood and the lightning finds its way into the house via the post… I don’t want to experience that. There is a glass fuse in the inventory, but we don’t know where it is.

@Streuselkuchen The line from the box to the router was rebuilt. I don’t see that as a problem either. The problems can most certainly be found in the overhead lines and on the masts.

@Streuselkuchen Only two parallel telephone connections were connected to the return in the BBR socket. That’s ok, because when the cable is plugged into the socket, the connections between in and out are mechanically separated. The DSL cable only goes to the router and the ATA1 output comes back. If you no longer have wired landline phones, you are welcome to remove the feedback. I’m not sure how much of an impact it will have on the DSL if the cable is open inside the box.