Transmission 3.00.6 problems

I've been having the same problems since upgrade to latest version ReadyNAS OS 6.2.

It seems to work intermittently ie. sometimes the page loads, but mostly not. Even if it loads, minutes later it will no longer be accessible. Strangely if I change the rpc-port to 9191, transmission loaded on 8181 like it always did. Bizarre..

Transmission for ReadyNAS, version 3.00.6. settings.json pasted below, since the website doesn't seem to like any extensions I choose .json .txt etc...

{
"alt-speed-down": 50,
"alt-speed-enabled": false,
"alt-speed-time-begin": 540,
"alt-speed-time-day": 127,
"alt-speed-time-enabled": false,
"alt-speed-time-end": 1020,
"alt-speed-up": 50,
"bind-address-ipv4": "0.0.0.0",
"bind-address-ipv6": "::",
"blocklist-enabled": true,
"blocklist-url": "http://list.iblocklist.com/?list=bt_level1",
"cache-size-mb": 4,
"dht-enabled": true,
"download-dir": "/data/media/Downloads",
"download-queue-enabled": true,
"download-queue-size": 5,
"encryption": 1,
"idle-seeding-limit": 30,
"idle-seeding-limit-enabled": false,
"incomplete-dir": "/data/Transmission/Incomplete",
"incomplete-dir-enabled": true,
"lpd-enabled": false,
"message-level": 2,
"peer-congestion-algorithm": "",
"peer-id-ttl-hours": 6,
"peer-limit-global": 240,
"peer-limit-per-torrent": 60,
"peer-port": 51413,
"peer-port-random-high": 65535,
"peer-port-random-low": 49152,
"peer-port-random-on-start": false,
"peer-socket-tos": "default",
"pex-enabled": true,
"port-forwarding-enabled": true,
"preallocation": 1,
"prefetch-enabled": 1,
"queue-stalled-enabled": true,
"queue-stalled-minutes": 30,
"ratio-limit": 2,
"ratio-limit-enabled": false,
"rename-partial-files": true,
"rpc-authentication-required": true,
"rpc-bind-address": "0.0.0.0",
"rpc-enabled": true,
"rpc-password": "{14ee7acbbe547e5e13ff24e545e87522c9febb71gRlpx/cm",
"rpc-port": 8181,
"rpc-url": "/transmission/",
"rpc-username": "admin",
"rpc-whitelist": "*",
"rpc-whitelist-enabled": true,
"scrape-paused-torrents-enabled": true,
"script-torrent-done-enabled": false,
"script-torrent-done-filename": "",
"seed-queue-enabled": false,
"seed-queue-size": 10,
"speed-limit-down": 100,
"speed-limit-down-enabled": false,
"speed-limit-up": 100,
"speed-limit-up-enabled": false,
"start-added-torrents": true,
"trash-original-torrent-files": false,
"umask": 18,
"upload-slots-per-torrent": 14,
"utp-enabled": true
}