@David-TP Thanks for the help. I set the router to 5g only and everything went back to normal. I realized that the 5g signal was the problem. I just changed the SIM to Vodafone from Three and it all...

I have a Deco x50 5g Router with four M5 extenders. Everything was working well until the mobile signal was upgraded to 5g from 4g in the area. I am using Three UK SIM. Nothing has changed in terms...