@Elemer 

 

It is usually either Deco mesh configuration settings, or wired network issue. The description you gave does not completely fit either of those two. If it were wired network issue, such as somewhere you have wired link with 100Mbps instead of gigabit, speed results should have been just under 100Mbps, can't be 150Mbps. 

If these were Deco mesh settings, it is hard to explain why they only apply to wired devices.

 

Here is what I would suggest. Assuming you still run Virgin fibre hub in its default router mode, switch Deco mesh to Access Point mode. In that mode all settings responsible for throttling speeds will be disabled. If after that wired speeds for your devices don't increase, you'll need to look at wired part of your home network and trace where the issue is.

 

For switching Deco mesh to Access Point mode see Switching a Deco to Access Point (AP) Mode

  @Alexandre. 
Thanks for the reply.  I think it's more likely a configuration issue as the same cables and switch used prior to installing the Decos were running at full speed no problems.

The Virgin hub is in modem mode and the decos are set to router mode.  I have had a look in the Deco app to see if there were any bandwidth limits on any devices but I'm not sure what I'm looking for to be honest.

 

Elemer wrote

  @Alexandre. 
Thanks for the reply.  I think it's more likely a configuration issue as the same cables and switch used prior to installing the Decos were running at full speed no problems.

The Virgin hub is in modem mode and the decos are set to router mode.  I have had a look in the Deco app to see if there were any bandwidth limits on any devices but I'm not sure what I'm looking for to be honest.

 

  @Elemer 

 

That's the thing: it is hard to tell what Deco setting can do that, especially when helping remotely.

 

I'll tell you what: if that really annoys you (as it should), bring Virgin hub back to its default router mode.  Then, switch Deco mesh to Access Point mode. Then check if issue is still there.

If it does not - why not run everything in that setup? If you don't want to, at least you'll know for sure it is Deco mesh settings. Set Deco mesh back to Router mode and go through different bandwidth throttling settings. I'll look first at priority devices, and such. Disable everything even remotely impacting bandwidth. Empty list of priority devices. Even disable content filtering and antivirus if you can. Stop/disable parental controls - you've got an idea.

 It only makes sense to dig through Deco mesh content management settings if you are absolutely sure it is not underlying networking hardware.

 

I’m hoping I’ve now resolved this by simply rethinking the cabling. Initially I had it set up hub/modem > Main Deco > Gigabit switch > Second Deco. Now I wired it hub/modem> Main Deco > Second Deco > Gigabit switch and speeds have improved much better.