You mention a few things that happened but you didn't provide any details which might shed some light on the problem.
1) You said the technician tested the speed using Ethernet. What was the result? Was the speed the same as what you were getting on WiFi?
2) You said you now have smart steering turned off and have 2 separate SSID's (one each for 2.4 and 5 GHz) Which one are you connectect to when you do your speed tests?
3) You say "gave me a “secondary router” to help with the amount of devices" and then you say "Just on my phone, being the ONLY one using the wifi". This is contradictory. Do you have a lot of devices on the WiFi or not?
@Jsun, When you test using Ookla, are you using the closest Telus server? When diagnosing a problem with your home router and wiring, I think it makes sense to take as much of the internet out of the picture as possible.
If you are consistently getting good Ethernet speeds then your Internet speed is not the issue. As you suspected it's your WiFi.
What model phone you have?
Do you have other WiFi devices and if so are you able to do speed tests on them to cmpare?
How many other WiFi SSIDs do you see from your phone? Could be a channel congestion problem.
For what it is worth, I am on Internet 75 with a bonded modem (two copper lines), and I just tested my ethernet connected PC. It came out at 75 Mbps, with a 4 ms ping. My iPhone 8 which is connected to the 2.4 GHz SSID just tested as low as 34 Mbps, and as high as 59 Mbps, 10 ms ping. It seems quite variable on the WiFi, and quite consistent and high on the ethernet.
I used to have a 50 Mbps modem, which was also bonded. It has some speed issues when it was first installed. One tech that came to the house tested the two lines and decided one was weak. He said there was a "tap" on the line that should not be there. I don't fully understand it, but I think that means when I was not using the one line somebody connected another line to it (and probably should not have). In any case it was repaired and the signal strength improved. It is something you could ask about. However, if you are getting good ethernet speed, then it seems it is a WiFi problem within your home.
I think to get 50 or 75 Mbps they have to use two copper lines coming into your house. That requires a bonded modem. They split the signal between the two lines at the wire centre, and then bond it back together at your home with the bonded modem. At least that is my memory of what they used for the 50 Mbps service. I switched to the 75 Mbps service when I called to complain about the price of the 50 Mbps. As a result of my call I got the 75 Mbps service for less than I was paying for the 50. I am also on Telus Optik, so perhaps the need is driven by the combination of TV and internet...
@Jsun - The connection itself has overhead built in to it to allow for separate bandwidth for the TV so that it doesn't affect the rest of your devices. Depending on the maximum available speed on the lines, that overhead sometimes isn't too big.
If there are 11 other wireless networks in range, it's entirely possible there is too much interference coming from them. There could also be environmental factors in your house that could interfere as well. Wireless speeds are never guaranteed since there are so many things that can affect them. The ethernet speed is going to be the key. If it's consistently 30mbps, contact Telus. They may need to ensure the connection to the modem is fast enough.
Does your modem have one or two phone cords attached to it?
To see what your connection speed is:
- Log in to the modem and then click Status at the top.
- On the left column click on Line 1 Status on the left, and then scroll to the bottom.
- We need to know what both numbers are next to Line Rate.
- If you have a second phone line connected, on the left column click on Line 2 Status, and then scroll to the bottom again.
- We need to know what both numbers are next to Line Rate.
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My thoughts are that there is no way that Telus can reserve part of the copper coming into your house for TV. It is true that they do not charge you for data used by the regular TV. But as far as bandwidth goes, the TV has to add to the demand. I believe the TV uses the 5 GHz WiFi if you have wireless set boxes in your home. My main TV PVR is ethernet, but the remote set top one is wireless. I would think it adds to the 5 GHz bandwidth demand, but I seldom use it.
As @Nighthawk mentions find out if you have two phone lines coming into your router, or check via the router menu. My memory is fading of the hoops I went though, but I believe I started out with a single phone line at Internet 25, and then signed up for Internet 50. They tried to make it work on a single line, but in the end, I believe that is when they connected up the second unused phone line and found that it had a "tap" on it. Once the tap was removed I got good speed, but obviously from my tests yesterday, I am not getting 75 Mbps with my WiFi...
It is a bit of a long shot, but some years ago before I was using Windows 10, I was having issues with my Internet 25 having slow download and poor ping time. One of the Telus techs or perhaps someone here suggested this change:
Control Panel, Device Manager, Network Adapter, Ethernet device, Advanced, Speed & Duplex: The default setting here is Auto Negotiate. I changed it to 100 Mbps Full Duplex. It improved my ping time to 6 ms and download to 24.8 Mbps. This was with a single phone line and Internet 25.
After I upgraded to Windows 10 I have not been making that change. I just looked at it and tried it now both with Auto Negotiate and the 100 Mbps. It made no difference. I got 4 ms, 80 down, and 21 up, with both setups. I am supposed to get 75 down and 15 up, so hard to complain. When you look at how the Ookla test behaves mine just goes straight to 80 and sits there steady. Same with upload, straight to 20-21 and sits there steady. I think that indicates I am getting full speed out of the router, and Telus is throttling the speed down to what I am supposed to get with a bit of a 5-6 Mbps bonus. I recall when I was having issues the speed would go up and down during the test.
My thoughts are that if you are on a single copper line, that is likely the issue. It may not be good enough for 50 Mbps. If you are on two lines bonded, then you should easily get 50 Mbps.
Not sure if you have looked at the Line status as suggested by @Nighthawk ? For what it is worth here is what I see for my T3200M router. Note that you have to be signed to the router to see this information. The normal user name is admin and the password unless you have changed it is normally on the side of the router.
Line 1 Status
Line 2 Status
@Nighthawk may be able to explain better than I can what this means, but I guess it is a line quality measure and the maximum data transfer rate. At least in theory it would be the sum of the two lines, but I would suspect there is some overhead involved that would cut into that simplistic total.