IOS 11.4.1 and wifi problem

No, the issue is not limited to the iPhone8, nor is it limited to Virgin Media routers. I have an iPhone 6 and a DLINK router, and had no issues for years until the 11.4.1 upgrade. The issue is with the update, and thus software based. However, some people are reporting some success replacing certain hardware. However, given the nature of the issue, any such success can only be viewed as a workaround, not an actual fix to the root issue.

I am struggling to understand why it is taking Apple so long to rectify this issue. Surely it is known what changes were made in iOS11.4.1 which are responsible. The simplest option would be to re-issue the version of iOS11 which worked perfectly before this whole debacle and then not make the same mistake again in future updates!

I have this problem since ios 11.4.1.. in my case..the WiFi slows down only when Bluetooth is switched on.

Once I turned it off... Boom the speed is back.

try this.. not very kind to people like me how own an apple watch..but it works.. 😐

Downgrade to 10.3...

How? Do you have the link?

Don’t think there is any point, Apple are no longer signing iOS 11.4, let alone anything earlier, so unfortunately we can’t go back now.

https://9to5mac.com/2018/07/17/downgrade-to-ios-11-4-blocked/

Try to go to wifi setup and set auto for configure proxy..my 6s plus got fixed after that setup..

Tried the beta and ios 12 beta 3 gives me the same problem.

Apple silence on this problem is deafening, android is looming had enough of there **** service over the years.

Well, I do not use Virgin Media, and I started having issues immediately after upgrading to 11.4.1, so I am pretty sure Apple owns this issue.

I have exactly the same issue on my iphone 6s+. Tried the so called solution, still the same.

DON´T put it in to repair!!!

That´s what they tell everybody, me too.

If it really works with 12 Beta - I can wait for IOS 12.

You will be waiting till mid to late September..Beta is fine. They release upgrade to Developers first so they can test it and get the bugs out. I have been using it for about a week and I love it!