D9 supports FAT32，NTFS but not exFAT

What's the model of your printer? Does it support airprint?

Do you use media server to access the drive? Try the other USB port, or test with another USB drive.

They apply different regulatioins on wireless radio broadcasting. If you are not in the US, better not upgrade to US version, and even if you want to, you cannot do it. Only US version, or maybe UN...

Is the WAN IP address of the router a public one? If not, you need to do port forwarding on your modem or main router for the tplink router. What goal that you want to achieve with port forwarding? I...

How about this one http://www.tp-link.com/en/faq-1732.html