by Crom Investigator
Investigator

Unlimited data sim: ever decreasing speed - what's going on?

speed.png

 

This chart started on 22.12.19 and the last entry is today 13.2.20. The chart clearly shows the speed of the data sim decreasing from approximately 50Mbps to around 10Mbps.

 

I have made a couple of calls to EE over the last fortnight as the performance of the 'line' has become unacceptable. They have, as ever, tried very hard to help but apart from saying that there have been issues with a local mast, been unable to offer me any help. If there has been an issue with a local mast then this would show up as intermittent issues with the 'line' as opposed to a steady decline.

 

The cynic in me turns to the fact that the SIM could be being steadily throttled but I believe that I am using this device within the terms and conditions of use, so I cannot explain why this might be the case.

 

The SIM is being used within a Teltonika 950 modem/router and provides a private wifi network.  

 

I'd appreciate some assistance in coming up with alternative suggestions as to what's causing the ever downwardly-spiralling speed problem and how to rectify it. 

 

Thanks,

Crom

12 REPLIES 12
by Crom Investigator
Investigator

Re: Unlimited data sim: ever decreasing speed - what's going on?

Hmm, for some reason that chart image isn't showing. I've shared the report from speedtest here. Thanks for your interest.

 

https://www.speedtest.net/results?sh=365d2599b4a512f7c1c67f27225cd904

by Brilliant Contributor
Brilliant Contributor

Re: Unlimited data sim: ever decreasing speed - what's going on?

@Crom , the chart does not show until it has been approved to be shown here, that is why. EE do not throttle speed, so not sure why you are having this problem, hopefully someone else will be able to help you, but since EE say there have been issues with the mast, that sounds like that is what the problem is. It also depends where the mast is, if it is on someone’s land, as they will then have to get permission to access it from the landowner, if that is the case.

by Skilled Contributor
Skilled Contributor

Re: Unlimited data sim: ever decreasing speed - what's going on?

You are using servers all over the shop. Use the 1 nearest you & you might get more consistent results.

by Brilliant Contributor
Brilliant Contributor

Re: Unlimited data sim: ever decreasing speed - what's going on?

Yes, did not look at all the results, always need to use the one nearest to where you are based, @XRaySpeXisBroke is correct on this too.

Highlighted
by Crom Investigator
Investigator

Re: Unlimited data sim: ever decreasing speed - what's going on?

Thanks both, for your responses. I will run further tests regularly using nearest server. I've just run one now (should be available on the link above):

 

down: 13.18Mbps

up: 1.18Mbps

 

Nothing there that changes the definite trend that's evident in that chart.

 

Nevertheless, I will report back. EE have kindly said that they will give me a call when the mast has been fixed. let's see what happens.

 

I'll report back.

Crom

 

by liggerz87 Established Contributor
Established Contributor

Re: Unlimited data sim: ever decreasing speed - what's going on?

Could be network congestion maybe try turning to 3g instead of 4g

by Ace Contributor
Ace Contributor

Re: Unlimited data sim: ever decreasing speed - what's going on?

@liggerz87 As EE only operate with a single 3G carrier, your proposition is ill advised. 

by liggerz87 Established Contributor
Established Contributor

Re: Unlimited data sim: ever decreasing speed - what's going on?

I wouldn't say its illadvised as if its using 4g in an area and you change most people could be using 4g so 3g could be quicker and I was putting it out as an option

by Crom Investigator
Investigator

Re: Unlimited data sim: ever decreasing speed - what's going on?

A quick update from me on this. I've continued to monitor speed and nothing has bucked the downward trend.

 

The situation has become ridiculous over the last week with the entire connection just dropping out, not responding to wget, ping etc. I configured the modem to reboot on repeated ping fails and the modem was rebooting about once in every 10 minutes.

 

So, this weekend I thought I'd run some tests watching BBC iplayer, doing a Fiit app workout and downloading a ubuntu image on bit torrent - all at the same time.

 

EE unlimited data sim in the LTE modem: the kids kept shouting that number blocks was pausing, my wife kept shouting that the workout video kept pausing and I noticed that the torrent was sporadically downloading and the speed never getting above 1.6MB/s.

 

Three unlimited data sim in the LTE modem: nobody shouting at me (result!) AND he ISO downloading at up to 4.1MB/s. 

 

My EE phone sim (using data gifted from the EE unlimited sim) in the LTE modem: The result here was exactly the same as the Three sim - iplayer, workout video AND the torrent all streaming/downloading at an acceptable speed...around 3-4.5MB/s for the torrent and not one complaint from the rest of the family. 

 

Ugh...so what gives? I thought that the unlimited EE data sim might be faulty...that's what EE suggested when I called them (they also confirmed no problems in our area). How to test the data sim then? This is difficult for me to test whilst maintaining the same conditions as above, but having inserted the sim into an iPhone I was able to browse the internet whilst streaming some iplayer without any glitch for about 30 minutes. This would have been unheard of with the same data sim inserted into the LTE modem.

 

I could have 'luckily' connected to another mast I suppose during any of these tests. So, I repeated these tests a few times but no change to the overall results. 

 

So. having done all that I would love to hear from others about my methodology above and what I could have missed, or what else I could do to more finely identify the culprit?

 

However, on the surface of these results, I can't think of another reason other than some network setting is being applied to either the combination of device and sim (in this case the LTE modem and EE unlimited data sim) OR perhaps the number of active connections from my network to the EE network is being monitored and the connection speed/bandwidth is being limited in some way (after a period of similar usage pattern) on that basis.

 

Whatever the cause, it's really annoying and I would love to resolve it. If these sim and data packages are not designed for this particular use case then I would love to receive a categorical answer from EE but I don't suppose they monitor these forums. The trouble is that when you live in the sticks, the options for a decent internet connection is limited!

by
EE Community Support Team

Re: Unlimited data sim: ever decreasing speed - what's going on?

Hi @Crom 

 

Thanks for coming back to us.

 

I would suggest giving our Tech Gurus a call on 150, they will be able to get this looked into for you.

 

Thanks. 

 

Leanne.

by Crom Investigator
Investigator

Re: Unlimited data sim: ever decreasing speed - what's going on?

Thanks Leanne, I have done. They are sending me a new sim as they believe that there may be a fault with the one I have currently. I'm a little sceptical about this but I'll report back in a few days, once it's arrived.


Thanks for jumping in on this, much appreciated!

 

by
EE Community Support Team

Re: Unlimited data sim: ever decreasing speed - what's going on?

Hi @Crom

 

Thanks for the update 🙂

 

If you can try the new SIM and let me know how you get on that would be great.

 

Speak soon.

 

Leanne.

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