Thank you all for your comments. I have, since, done some further tests, as follows:
Using an old Core2 Duo/Win10 machine, wired directly to one of the Asus router ports, I get the following when pinging my ISP (
www.teksavvy.com)
Min 21ms Max 23ms. I have not calculated the mdev, but it looks quite small.
Using my Dell laptop wired, I get
Min 51ms Max 57ms.
Using my Dell laptop, with 5GHz wireless, I get
Min 52ms Max 55ms.
Using the ping tool in the Asus router, I get
Min 21.022ms Max 21.581ms
The following comments need to be made:
- The test with the desktop suggests that there is nothing wrong with my router, using a wired connection.
- The router tool test shows the least variation, so the mdev is quite small. This doesn't seem unreasonable to me, as (I assume) the ping from the router is being generated on the Wan side. So, this ping time is substantially the same as that from desktop.
- There is little difference between wired and wireless performance of the laptop. However, in both cases the ping time is about 2.5 times what I see from my desktop.
- The laptop, when wired, is connected via a RJ45-USB adapter, because the laptop has no RJ45 interface. I don't know how efficient the network connection will be when going via USB. The USB ports of the laptop are type A USB 3.2. There is also a type C Thunderbolt 4.0 port. I don't think that, intrinsically, any of these ports should limit the ping performancc.
- The laptop network card might be a suspect, though this would be a coincidence, given that this card is not involved in the wired connection.
- The laptop connection to the Asus router is, I think, via a TP-link switch and is not direct, as is the case with the desktop machine.
Based on the evidence so far, I am planning to do some further tests.
- Connect the wired connection of the laptop directly to one if the router RJ45 ports, so there is no switch involved.
- Although, I don't think that it will change the results, use the Thunderbolt port for the wired conection to the laptop. Given that the is no hardware RJ45 port on the laptop, I am limited in how else I can connect it to the LAN.
- Change the laptop wireless card back to the older AX201 card, to see if this makes a difference.
- Replace the AX5400 router with the older Asus N66U router. This will provide a check on the wireless performance of the AX5400 router.
- I also have a USB wireless dongle, which I can use in my desktop machine, I can try this to see if the desktop ping preformance stays the same. This would provide more evidence of the wireless performance of the router.
So far as the speed of the connection is concerned, the laptop, with wired connection, shows
23.25/10.47 for the nominal 25/10 service. Despite my ISP service being on the low side, I have generally found it quite adequate for my needs. The 5GHz wireless connection shows a speed of
23.66/10.11, using Ookla, so there is little difference between wired and wireless.
That's all for the moment.
Gordon