I have the same problem
I opened a case with Apple, followed below steps which worked for me.
Installed 11.2 yesterday through phone (don’t upgate through phone).
Steps
1. Take a phone backup on computer through iTunes
2. Restore phone (iPhone 8 Plus) through iTunes In desktop. It was approximately 2.75GB
3. One done, setup the phone as a new iPhone. Don’t restore from backup at this point.
4. Once all the phone setup done, restore the backup taken in step 1.
5. All done... earlier my wifi speed was showing ~8mbps. Now it is showing ~40mbps
I hope this will help!!
I’m sick of this issue now I cannot connect to WiFi on the odd occasion it connects after turning off and on this is killing. My data - are apple going to pay for over charges ???????
Any response from Apple?
I’ve had 0 response which is crap spent nearly he best part of £1000 on this phone and customer service is none existent
I'm curious to know what they will do. They've already given me a new iphone 8, but the issues still persist. I've been taking screenshots for 2 months now.
I wished this worked. It doesn't. I even went so far as to reset the phone and not login to iCloud and it STILL has WiFi connectivity issues.
Sorry, but this seemed to fix it only temporarily....I am back to square 1 seeing that spinning wheel again!!
I have the same issue on my iPhone 8 Plus. This suggestion was not helpful and doesn't work. There is a problem and this needs to be fixed. I will go get a replacement and see how it goes.
I beleive that iphones have weak wifi reception.i always need to switch to cellular data in my own house,never had such an issue with my older android device...
I have an iPhone 8 & have the same problem with wifi dropping signa
Yes , mine is doing the same
My iPhone 8 Plus keeps dropping Wi-Fi. Mac Air and I Pad does not. Any solutions?
I have the same issue with my iphone 8 and it is very frustrating and has caused me to use more of my data plan. Anytime the phone goes into sleep mode it wont reconnect to wifi so have to toggle the airplane mode for it to pick it up again.
If you have only that option and it doesn’t work then the iOS is a problem! I had the same issue with my 5C since it has only Auto-Join and I Restored my iPhone as NEW and now it’s fine !
iphone 8 plus wifi issues