Wifi device jammed lan wired network

RouterOS Wireless Networking
1

Hi there and a happy new year,

I have a strange problem with my MikroTik Routerboard RB951G-2HnD.

Last week i have a friend over with a samsung galaxy j5 phone.
When she connect this phone to my wifi network all the wired devices having network problems. The wired network is swiched on and off while the phone is working. There are no ip address conflicts. Even winbox connection to the router is being dropped.

My friend has also other wifi devices connected witch gives no problem.

Does anybody have any sugestion whats going on?

My home network consist out of a UPC / ziggo modem in bridging mode and a MikroTik Routerboard RB951G-2HnD router

Best regards,

Peter

2

The first thing should be looking at the logs for clues.

Try to watch (and post here) the log when connecting that phone.