Windows 10: ERR_CONNECTION_RESET on some websites,dissapears after hard reset,but then appears on the...

Hi!i would like to get some help with this problemi often get ERR_CONNECTION_RESET on most of sites i use,it's appears on all devices.Nowhever it's dissapears after hard resseting the router,but,after couple of days appears again on the SAME sitesi can acess those sites with vpn thoi use AC2100 by xiaomiwe tried to change the firmware but it's didnt helped,we tried to contact xiaomi support but they just said that it's not their problem,we also contacted internet provider and they said that it's router's problemi'm confused where else to ask,it's just frustrating

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'ERR_CONNECTION_RESET'

I get 'ERR_CONNECTION_RESET' message when clicking o 'Log In' on my online banking. Only have this message on my laptop. Can access from my IPAD no bp. All suggestions gratefully received. Thanks

 

ERR_CONNECTION_RESET Error

I am Getting ERR_CONNECTION_RESET error on few websites when ever I am trying connect but they working fine on my cellphone or even on y desktop.

 

Supported phones for Windows 10 Mobile Insider Preview Mobile

Your list confirms my phone is eligible, Lumia 521. The windows Insider App fails after ~ 15 seconds, restores data and gives me error 80073cf9. I trouble shot this and went thru all the steps mentioned on several websites including MS without any luck. Short of a hard reset, this is where I am now. Suggestions appreciated.