Ajax error when accessing SD card

I need a few pointers on this issue. I saw a similar issue posted here about 6 months ago but the solution in that case ended up being a folder not named correctly on the SD card (gcode instead of gcodes). I checked mine and it is right though so I have a different issue apparently. Symptoms are pretty much the same though. I am connected on web interface everything responds well including movement, temp, fans, even uploading gcodes to SD card to start a print works. However, if I click on the tab to open the gcodes folder OR if I click on the config file tab under settings, it stalls and then AJAX error boots me. Here is the result of an M122 command:

Used output buffers: 4 of 32 (14 max)
=== Platform ===
Memory usage:
Program static ram used: 45724
Dynamic ram used: 42396
Recycled dynamic ram: 1992
Current stack ram used: 2752
Maximum stack ram used: 4344
Never used ram: 3848
Last reset 00:02:27 ago, cause: power up
Last software reset code & available RAM: 0x0003, 1524
Spinning module during software reset: GCodes
Error status: 0
Bed probe heights: 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
Free file entries: 10
SD card 0 detected, interface speed: 21.0MBytes/sec
SD card longest block write time: 0.0ms
MCU temperature: min 11.2, current 27.9, max 30.0
Current date and time: 2016-12-20 10:24:46
Slowest main loop (seconds): 1.370510; fastest: 0.000092
=== Move ===
MaxReps: 0, StepErrors: 0, MaxWait: 0ms, Underruns: 0, 0
=== Heat ===
Bed heater = 0, chamber heater = -1
Heater 0 is on, I-accum = 0.0
Heater 1 is on, I-accum = 0.5
=== GCodes ===
Move available? no
Stack pointer: 0 of 5
macro is idle
http is ready with "M122"
telnet is idle
serial is idle
aux is idle
file is idle
=== Network ===
Free connections: 15 of 16
Free transactions: 23 of 24
=== Webserver ===
HTTP sessions: 1 of 8
FTP connections: 0, state 0
Telnet connections: 0, state 0

Hopefully chrishamm will be along soon to respond to this. Please state your DWC and firmware versions.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

Web interface is 1.13
Firmware is 1.16

Thanks!

If you access the Duet through FTP (e.g. using Filezilla), does the directory structure look normal?

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

Not using FTP. My duet 0.8.5 is hooked up to a router which is hooked up to my university's network. I had out IT guy set it up. He used port forwarding to do it. But I also checked it with a shared internet connection straight out of my laptop's ethernet port to the duet and it was still doing it so I didn't think the port forwarding would be the problem.