Sometimes you found your IP belong to 169.xxx.xxx.xxx overthought you’ve configure the correct IP for particular interface and you are wondering why it does become like that. Subsequently your network team said there is none of problem at all from network perspective.
So, simple thing comes with simple solution. When you found that you unable to ping the default gateway and you convince you’ve configured the correct detail IP as well as subnet mask then it might because duplicate IP address.
How to prove this? by simply go to command prompt and run ipconfig /all.
E.g as above with red rectangle mark.
Thus ask the NW team to provide another available IP then your problem will gone in a few minutes.