Readynas PRO OS6 loses network connection

Hi ,

I have a Readynas PRO6 with OS6 (6.10.3) installed.

every once in a while the Readynas loses network connection (Raidar , Putty , windows explorer). Sometimes it happens after 30+ days , sometimes after several hours.

It happens to both network connections (although not always at the same time it seems).

Switching the box off with the front power switch only works at 50% of the times and always takes a long time. Switching off and restarting by keeping the button pressed for 5 seconds always works and restarts the network connection as well.

The diagnostics from Raidar show: (assembled from several files) :

Successfully completed diagnostics
System
No errors found.
Logs
2020-04-14 03:37:01: general protection fault: 0000 [#3] SMP
2020-04-14 03:37:01: RIP [ ] free_extent_buffer+0xb/0x7a
2020-04-13 22:42:17: general protection fault: 0000 [#1] SMP
2020-04-13 22:42:17: RIP [ ] __fget_light+0x42/0x59
2020-04-13 22:42:17: general protection fault: 0000 [#2] SMP
2020-04-12 14:13:46: general protection fault: 0000 [#1] SMP
2020-04-12 14:13:46: RIP [ ] __fget_light+0x42/0x59
2020-04-12 14:13:46: general protection fault: 0000 [#2] SMP
2020-04-11 09:11:06: general protection fault: 0000 [#1] SMP
2020-04-11 09:11:06: RIP [ ] __fget_light+0x42/0x59
2020-04-11 09:11:06: general protection fault: 0000 [#2] SMP
2020-04-09 13:02:37: general protection fault: 0000 [#1] SMP
2020-04-09 13:02:37: RIP [ ] __fget_light+0x42/0x59
2020-04-09 13:02:37: general protection fault: 0000 [#2] SMP
2020-04-09 05:21:53: general protection fault: 0000 [#1] SMP
2020-04-09 05:21:53: RIP [ ] __fget_light+0x42/0x59
2020-04-09 05:21:53: general protection fault: 0000 [#2] SMP
2020-04-06 13:53:12: BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
2020-04-06 13:32:03: general protection fault: 0000 [#3] SMP
2020-04-06 13:32:03: RIP [ ] filp_close+0x9/0x6f
2020-04-06 13:32:02: general protection fault: 0000 [#2] SMP
2020-04-06 13:32:02: RIP [ ] __fget_light+0x42/0x59
2020-04-06 13:24:21: general protection fault: 0000 [#1] SMP
2020-04-06 13:24:21: RIP [ ] poll_freewait+0x49/0x90

I did a memory test and that all seemed fine ...

Most of the time the unit stops when it is idle , in the night or when not accessed .

Has anyone seen this behaviour before and can maybe point me in the right direction to correct this ?

Thanks !!

Harold