Telstra and other RSP unexplained data usage increases

Router is the device that shares the network around your house. The Google device will be using the internet to create the connection so you can purchase products.

Even if the Telstra router is somewhat locked down you can certainly log into it and look at most of the detail you require. To get access there are many explanations on the web to step you through the steps needed, they are not onerous to do.

One from Telstra

https://www.telstra.com.au/support/category/broadband/manage/finding-your-default-gateway-address#:~:text=Find%20your%20Telstra%20modem’s%20default%20address%3A%201%20Ensure,what%20technology%20type%20-%20enter%20http%3A%2F%2F192.168.0.1%20or%20http%3A%2F%2Fmygateway%2F

Once you are log into the router/modem you will have various menu items you can investigate.

The following online document may help you understand some of the setting you will be looking at

Item 24 is about traffic metrics and may help you understand what traffic is occurring up and down.

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I couldn’t get either of the links ( http://10.0.0.138 or http://telstra.gateway/) to the Telstra Gateway to connect.

From my Telstra website I can view a graph of the internet traffic for each day in the current billing period, but of course, it doesn’t tell me where/what that traffic is.

Yesterday I requested help direct from Telstra but have not heard back. I tried via Chat also and that was totally useless as they couldn’t seem to understand the problem.

I have decided to just bite the bullet and upgrade my plan (I think this was going to happen anyway) so that I have unlimited data.

Still this doesn’t explain why the issue is occurring, but I am convinced it is a fault with the changeover to the NBN, as nothing has changed in how the internet is used at my place.

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Do you use Windows? If so what version? This will help me or someone else advise you how to find the gateway address.

It’s unlikely to be a NBN fault just because you have changed from ADSL or other style connection. Some people notice increases as connection speeds may be increased which means more pages are downloaded in the same period than when they had a slower connection, that is they tend to surf the web more than they were previously able to.

A trio of common addresses to try are 192.168.0.1 or 192.168.1.1 or 10.0.0.1

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When I switched to NBN this year, my RSP provided the Wifi router and a booklet that clearly gave the URL to put into any web browser on a Wifi or cable connected device to enable me to see connected devices and packet stats on that device.
Do you have that booklet?

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Windows 10.

I previously had a cable connection before the NBN. According to a number of internet speed tests, my average download and upload speeds DECREASED after switching to the NBN. A speed test I did last December - before connection the NBN - is shown below:

test speed

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I have just done another one and the difference is remarkable i.e. my speed is much lower since switching to the NBN.

So I seriously doubt more pages are being downloaded since connection to NBN is the cause of this issue.

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Prior to the NBN cable internet was often ‘all in’ meaning you got what you could get. What plan do you have on the NBN? If it is basic 25mbps that would explain it. The servers throttle customers to approximate what they are paying for. If you are paying for 50 or 100 mbps you need to have a chat with your RSP.

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You aren’t doing cryptocurrency mining? Or have you done deep malware scans recently?

It might we worth installing a third party app to track computer processes using data. This website gives options


Another option is to disconnect all devices for at least a 24 hour period - at a long enough period to ensure that data isn’t been used for for the daily Teltra online metering period.

If the Testra online record shows zero, then it may be something attached to the connection which is chewing through data (this is where third party app to track process usage may be useful to find out what it is). Also use the process of elimination if you have a nunber of devices hanging off the one connection
turn one off daily to see if Telstra metered usage changes.

If the Telstra daily meter records significant data usage, it could be a metering issue at Telstra end, a faulty router (or dongle if it was powered up when any devices were disconnected) or someone using your connection that you are unaware.

There are apps which can track connections to a wifi router/dongle to see if there is any unknown/unauthorised connections.

If Telstra metering shows data use when it shouldn’t, the last test is to turn off the dongle/router. If it still shows data use, it will be a Testra issue where there is a problem with their metering (for example, it is collecting data from the wrong IP address of multiple IP addresses).

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I was still on an old plan - have only just switched to the basic 25mbps plan AFTER I did the current speed reading.

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No cryptocurrency mining - don’t even understand what it is!

I have two printers and two external hard drives connected, and I hardly have any programs installed on this computer.

I will check with one of the 10 easy tools to see if any are ‘phoning home’. but I doubt if I have anything other than Windows updates doing this.

Still got to read and digest your other suggestions


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Your old cable speed of 110/5 is typical of the Telstra’s “standard” over provisioned HFC cable. A few year back they uplifted all customers from 50/? in an effort to keep customers with Telstra as long as possible. Telstra’s NBN “standard” speed is 25/5, standard-plus speed 50/20, & premium speed 100/20.

When I changed over, to keep the equivalent fee, moving down to 50/20 was what happened. Otherwise it was an extra $20/mth to get 100/40. (100/20 was not an option then). As a result, I chose another RSP.

It sounds like either your speed was downgraded to keep your fee equivalent or there was a migration error.

I have two recent Telstra gateways. Looking at the labels, one states http://192.168.0.1/ and the other http://mymodem , and as per the referenced document above, username/password for both is admin/Telstra