Since 10.1.1 my contact names won't show in messages, how can I fix this?

[iMore Question]

Since downloading the latest upgrade into my iPhone 6, the names of my contacts will not show in messages. I only see their phone number. I hate this. I cannot tell who is sending a message. What can I do to fix this?

 

[anon(9760316)]

Have you tried any steps already? Usually, some basic troubleshooting fixes that, like for example to force restart or to reset all settings, stuff like that.