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on 30-01-2026 05:44 PM
Hi
Seem to be getting some kind of interference on the Router (Wifi Hub).
Generally Fibre35 gives me a solid 12-17 Ping with 30Mbps down 6Mbps up.
However I keep getting intermittent drops to 500+ Ping with single figure Mbps down and less than one Mbps up. Particularly noticeable on XBox with online games dropping out or lagging badly.
Tried both Wifi and direct Ethernet connection between Xbox and Router and it seems to persist.
I may have narrowed it down to either or both of TV (older plasma) and/or Sky HD box but it's so intermittent its difficult to be certain.
It also happened a couple of years ago and a replacement router seemed to fix it until now, could it be this replacement router has developed a similar issue?
Grateful for any ideas!
on 20-02-2026 07:06 AM
Thank you @KeithFrench I will escalate this to Nicolene.
on 17-02-2026 10:01 PM
There are now two issues:-
Wi-Fi interference (nothing to do with electrical interference) can cause:-
This can affect one or more devices. This can also lead to a permanent reduction in the speed of one or more devices. No ISP can be responsible for your local environment; this is mainly a byproduct of the popularity of Wi-Fi.
Generally speaking, the 2.4GHz band suffers far more from Wi-Fi interference than the much faster 5GHz band. However, the 2.4GHz band has a longer range than the 5GHz band and can penetrate walls better. This may very well change depending on your local area.
In other words, I offer a free, impartial analysis of your Wi-Fi network and will try to help you optimise your Wi-Fi connection. The next stage involves my sending out a guide to help you get important diagnostic information for me. I will then analyse these results for you and recommend changes to your router configuration, if required.
I only send this out to people who request it.
Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
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17-02-2026 04:46 PM - edited 17-02-2026 08:23 PM
Router in the same room as the devices that weren't connecting, high up on top of a wall unit. Dropping wi-fi altogether by far the bigger problem than the speed drops.
Further update: The dropping devices problem became progressively worse to the point where even restarting the router didn't allow re-connection to any wi-fi devices , router just displays solid amber light and doesn't show a SSID to enable connection. So I've gone back to my previous router (the one replaced my current one, which was sent as the solution the last time I had intermittent issues with speed drops, wifi performance and online gaming dropouts). Devices are at least now connecting ok to this one. Haven't changed any DNS settings on it. Still getting ping spikes and speed drops.
on 13-02-2026 09:22 AM
Thanks for helping out @KeithFrench
on 13-02-2026 09:19 AM
Hi @GraemeMcD
Please can you get me a fresh set of tracert output? I don't think that I have had any since the DNS issue was sorted. I need to see if this is a network issue or not.
I can help a lot with WiFi issues, but first off, where is the router situated with respect to your wirelessly connected devices?
Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they?
13-02-2026 07:06 AM - edited 13-02-2026 07:12 AM
Hi there @GraemeMcD. I am very sorry to hear this. Just to confirm which one are you experiencing the most between dropping connection and slow speeds?
on 12-02-2026 06:06 PM
UPDATE:
Monitored things for a week and we're still getting online gaming lag and dropouts with ping spiking (particularly upload ping around 2000+)
Over the last couple of days the router has also started to disconnect devices (iphone/firestick etc) either overnight or upon returning home and they won't reconnect unless the router is restarted. Have TT made any remote changes or updates to cause this?
Must say these ongoing and new issues are extremely frustrating and given I'm just out of contract I'm considering other options.
on 05-02-2026 07:01 AM
Hi @GraemeMcD You welcome, please keep us updated on how it goes.
on 02-02-2026 04:29 PM
Ok, will monitor and see how it goes with the xbox online gaming dropout issue.
Thanks for your help.
on 02-02-2026 04:13 PM
Perfect!
I think there was a previous firmware update, but I can't remember which. It wrongly set the router to have the TT network DNS servers assigned to each client via DHCP. The correct way is to tell your PC to use the router as its DNS server and the router talks to Google DNS for any queries that it cannot answer itself.
Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they?
on 02-02-2026 04:12 PM
@KeithFrench Thanks for helping out.
on 02-02-2026 04:03 PM
that's all done.
ipconfig/all now shows DNS servers 192.168.1.1
on 02-02-2026 03:55 PM
Hi @GraemeMcD
Look at my post #11 that will sort it.
Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they?
on 02-02-2026 03:43 PM
Disconnected and reconnected.
Tried to pm the details as requested but apparently I've reached the limit on the number of pms I can send and need to try later!
You would've seen the router network page showing DNS 8.8.8.8 & 8.8.4.4 and the ipconfig/all showing DNS 79.79.79.79 & 80
on 02-02-2026 03:35 PM
Thank you @KeithFrench
on 02-02-2026 03:24 PM
Hi @GraemeMcD
Our last posts crossed in the ether! I have seen this with another customer. In that case, in the router, go to:-
Dashboard > See Wi-Fi Settings > Manage Advanced Settings > TalkTalk Wi-Fi Hub > DNS
You will find the 79.79.79.79 addresses there. Delete them both and replace the primary one with 192.168.1.1 or, if you have changed it, the new IP address of your router.
Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they?
on 02-02-2026 03:20 PM
Hi @GraemeMcD
Please can you disconnect your PC from the WiFi & then reconnect it & then PM me again with the ipconfig /all command. The easiest way is to select all of the text in the commands output & use Ctrl+c to copy it to the clipboard.
Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they?
on 02-02-2026 03:19 PM
Do I need to reboot anything - ipconfig/all still showing DNS 79.79.79.79 even though router dashboard says 8.8.8.8??
on 02-02-2026 03:11 PM
Ok - I've manually changed DNS IP4 DNS 1&2 to 8.8.8.8 and 8.8.8.4 as advised.
Guess it's just a case of monitoring now?
Presumably this will highlight an issue with Talktalk DNS servers which will need addressing and once that's done I change back to auto-select?
on 02-02-2026 07:16 AM
Hi there @KeithFrench Thank you very much for assisting the customer.
@GraemeMcD Please attempting to do anything, please confirm if the above steps helped in resolving your issue Thanks