Strange DNS like issue on EE 500mb Fibre Broadband

[SteveABS]

I was with BT for some time and up to April 2024 on 900mb fibre which had no issues. I've moved over to EE broadband and added x3 TV boxes, changed to 500mb speed and got the Wifi 6 router. Speed wise I always have 500mb - no issues.

I have a Windows 11 PC connected to the hub directly on ethernet and a win 10 laptop connected via Wifi (in the same room as the router). I've been getting strange DNS like issues when I click a link from a gmail email (on Chrome or Edge) - the link will take 30+ seconds to show the page, sometimes showing a DNS issue for about a second. If I click the link again soon after it will be instant.

On the laptop I use MS Outlook for email and when I do a search for "subject:fred" it can go off for about a minute before getting the results, if I click to join an MS teams meeting or a shared document - the same. 

After a router reboot or changing the router for a new one, at first all is good then the behaviour comes back.

EE Wifi 6 router doesn't allow you to change DNS so I'm thinking of swapping to an ASUS or similar and see how that behaves.

Spoke to EE tech team, and complaints and nobody has ever heard of this behaviour before. Be any suggestions or questions would be welcome.

[SteveABS]

@JimM11  thanks for the reply. More than happy to give that a go. 

The problem only exists when the EE router is present. Even swapping it for a new replacement made no difference. When I replace the EE router with the ASUS the problem goes away. So that seems like pretty convincing evidence. 

Ideally I want EE to fix so I can use their free router and not need the ASUS.

[JimM11]

@SteveABS As long as you require to have a DV on your system then you have zero options but to use an EE router for the Supplied EE DV, unless you port your number to another VOIP solution. You are also not making it 100% clear if you experience your issue with both wired and wireless connected for the devices. In using EE for 8 months and the ISP router primary, have not once came across delayed response like you are suggesting.

[Timbo45]

I have DV but now only use the voicemail facility as my Asus is connected directly to the ONT.

Previously though I was using DV normally with the SH2 connected to the ONT and an Asus DSL-AC68U connected to the SH2 handling everything within my household. The landline phones were connected to the SH2.

Apart from double natting this configuration worked just fine with the Asus providing the DNS details (and everything else).

As you'll notice I was using a modem/router device so with just a router the setup would a little simpler.

[JimM11]

@Timbo45 You are 100% spot on with what you have done, Asus make real router's and if were not for having to get on just to check out why the DV system is or has acted up causing the problem, just do not know any other way to interrogate it as pin access only works for certain aspects without putting the EE/BT router back on line and attaching the handset so it knows you are doing it all from your own landline.