NFS Mount Hangs
 

I would like some help diagnosing a problem with NFS. This is probably caused by some configuration setting that I need to change, but I don't know what that might be.

What I'm seeing is that when I try to mount over NFS when connected via wifi (WLAN0) the mount will always hang forever. Doing the exact same mount over ethernet completes immediately.

Mount command:
sudo mount -t nfs4 192.168.1.176:/photos /mnt/photos

The client is a Raspberry Pi running Raspian Jessie (Linux PIDISPLAY 4.4.34-v7+ #930 SMP Wed Nov 23 15:20:41 GMT 2016 armv7l GNU/Linux). The NFS server is running Ubuntu 16.04 NFS v4.

wesw@PIDISPLAY:~ $ showmount -e 192.168.1.176
Export list for 192.168.1.176:
/export/photos 192.168.1.0/24
/export 192.168.1.0/24

wesw@PIDISPLAY:~ $ rpcinfo -p
program vers proto port service
100000 4 tcp 111 portmapper
100000 3 tcp 111 portmapper
100000 2 tcp 111 portmapper
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper

So it works using ethernet. I would say it is a network configuration error, not related to nfs itself. You need to check how your network was configured (ifconfig ?) and what is the difference.

Fixed
 

The problem turned out to be a bad wifi AP. For some odd reason the AP will not route NFS traffic. Time to buy a new AP.

Thanks for posting the resolution! (p.s. thot: maybe you can access&config the AP[?])
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