Do you know you’re running the 32 bit version of PMS when you could be running the 64-bit version?
If you downloaded through Package Center, that’s why you have the 32 bit. Synology does not make the 64 bit version available.
Feb 25, 2018 11:18:25.404 [0xf3111b40] INFO - Plex Media Server v1.10.0.4523-648bc61d4 - synology DiskStation i686 - build: linux-synology-i686 synology - GMT 00:00
Feb 25, 2018 11:18:25.405 [0xf3111b40] INFO - Linux version: 3.10.102 (#15254 SMP Fri Jan 26 06:46:44 CST 2018), language: en-US
Feb 25, 2018 11:18:25.405 [0xf3111b40] INFO - Processor Intel(R) Celeron(R) CPU N3060 @ 1.60GHz
For as strange as it may be, you have no ethernet adapters defined. In order to get these logs, at least one is working. I suspect a broken ethernet connector clip / bad cable making it appear unplugged
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - NetworkInterface: Netlink address message family=2, index=3, flags=0x80
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - Network change.
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - NetworkInterface: Notified of network changed (force=0)
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - Network interfaces:
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - * 1 lo (127.0.0.1) (loopback: 1)
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - NetworkService: Dispatch network change after two second delay.
Feb 25, 2018 11:21:38.879 [0xed08fb40] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Dispatch network change after two second delay.
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Dispatch network change after two second delay.
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Dispatch network change after two second delay.
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Dispatch network change after two second delay.
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - NetworkService: Dispatch network change after two second delay.
Feb 25, 2018 11:21:38.880 [0xed08fb40] DEBUG - PublicAddressManager: Obtaining public address and mapping port.
Feb 25, 2018 11:21:38.880 [0xe61a1b40] DEBUG - PublicAddressManager: Obtaining public IP.
Feb 25, 2018 11:21:38.880 [0xe61a1b40] DEBUG - HTTP requesting GET http://plex.tv/pms/:/ip
Feb 25, 2018 11:21:38.881 [0xe61a1b40] ERROR - Error issuing curl_easy_perform(handle): 6
Feb 25, 2018 11:21:38.881 [0xe61a1b40] WARN - HTTP error requesting GET http://plex.tv/pms/:/ip (0, No error) (Couldn't resolve host 'plex.tv')
Feb 25, 2018 11:21:38.882 [0xe61a1b40] ERROR - PublicAddressManager: Unable to get public IP adddress from myPlex (httpCode=-6):
Feb 25, 2018 11:21:38.884 [0xe61a1b40] DEBUG - MyPlex: Updating device connections (from timer: 0)
Feb 25, 2018 11:21:38.884 [0xe5eb3b40] DEBUG - NAT: UPnP, attempting port mapping.