Question Modem receives 118Mbit/s↓ and 13Mbit/s↑, on any device the upload speed is fine, the download speed doesn't exceed ~1.5Mbit

Feb 20, 2019
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What the title says.

The modem is a D-Link DVA-5592, FTTC up to 200Mbit, I tried different speedtests on my desktop computer and on 3 other devices (1 iPhone, and 2 laptops).
Talking about my PC, it's using a TP-Link AC600 Wireless Dual Band USB Adapter that goes up to 150Mbps on the 2.4Ghz band and 433Mbps for the 5Ghz band.
I also had 4 phone calls with my ISP and they confirmed me that it wasn't their fault, my modem is receiving 118Mbit in download but for some reason every single device I've tried has this problem.
I also did different speedtests with my PC and laptop connected through ethernet cable to the modem, the results are the same if not a bit higher by 0.2 Mbit/s.
It randomly started 3 weeks ago for no apparent reason.

On my modem's user interface:
View: https://imgur.com/a/UW6ltap


Every single speedtest I had:
View: https://imgur.com/a/kJeoeh2


So, what the hell is going on?
 
Last edited:
Feb 20, 2019
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ok so how many Ethernet cables do you have running out of modem? And what speeds were you getting before the problem started?
I usually have none, I tend to use only Wi-Fi.
Before this weirdness started I could easily reach 100Mbit/s in download and even more meaning that my PC could reach like 11MB/s when downloading something, but now it downloads files around 100KB/s, and this from sites like Google Drive, OpenLoad or Zippyshare that don't restrict your download speed.
 

shknawe

Respectable
Oct 22, 2016
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I have to ask the dumb questions first. Have you tried a power reset? Unplugging the modem for 5 minutes and restarting? Have you made sure the cable going in to the modem is tight, remove and reseat it. Vdsl is very distance from source sensitive. Meaning the farther away from your connection from the outside connection the weaker the signal gets. Can your isp tell you what speed the signal going in to your modem, not to their source outside is?
 
Feb 20, 2019
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I have to ask the dumb questions first. Have you tried a power reset? Unplugging the modem for 5 minutes and restarting? Have you made sure the cable going in to the modem is tight, remove and reseat it. Vdsl is very distance from source sensitive. Meaning the farther away from your connection from the outside connection the weaker the signal gets. Can your isp tell you what speed the signal going in to your modem, not to their source outside is?
Yes I tried the power reset, even tried a factory reset, and since the modem was given me by my ISP, I also asked them about the upload/download values on the user interface, and they said that those values are the actual speeds of the signal going in and out of my modem, my contract with them is up to 200Mbit/s.
 

shknawe

Respectable
Oct 22, 2016
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They will have to come out and see what is wrong since it is all their equipment. You should not have to troubleshoot their modem/router. You are not receiving what you are paying for so make them come out and give you your moneys worth of internet! It is them don't let them tell you it isn't.
 

Ralston18

Titan
Moderator
I have a question:

How are the connections being made?

For example, see Page 7 in the following link (provided that I have correctly identified the modem).

https://www.manualslib.com/manual/1375998/D-Link-Dva-5592.html?page=12#manual

When telephone connections (jacks, wires) are involved it is all too common for things to get a bit mixed up or improperly configured.

You may have other devices in place (splitters/filters) that should not be there or you may be missing things that should be there. Line filters perhaps. Splitters/filters can and do go bad.

More information here:

https://www.wisegeek.com/what-is-a-dsl-filter.htm

Just thinking out loud....

You may indeed need to have your ISP come out and correct some related issue. However, the more you know beforehand the better
 
Feb 20, 2019
5
0
10
0
I have a question:

How are the connections being made?

For example, see Page 7 in the following link (provided that I have correctly identified the modem).

https://www.manualslib.com/manual/1375998/D-Link-Dva-5592.html?page=12#manual

When telephone connections (jacks, wires) are involved it is all too common for things to get a bit mixed up or improperly configured.

You may have other devices in place (splitters/filters) that should not be there or you may be missing things that should be there. Line filters perhaps. Splitters/filters can and do go bad.

More information here:

https://www.wisegeek.com/what-is-a-dsl-filter.htm

Just thinking out loud....

You may indeed need to have your ISP come out and correct some related issue. However, the more you know beforehand the better
I got a telephone cable going from a filter/splitter on the wall outlet to the DSL port on the modem, then I usually connect devices via Wi-Fi, if I decide to connect something via ethernet cable I'll use one of the four GbE LAN ports, there is nothing else if not the power cable, I don't even have my telephone connected, I removed it a long time ago way before the contract.
Also, I did speedtests on both wireless bands and both give the same problem.
 

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