[FS#1475] Belkin F5D8235-4 v1 switch issues, WAN port packet loss

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Roman M. (rm245x) 

Attached to Project - OpenWrt/LEDE Project
Summary - Belkin F5D8235-4 v1 switch issues, WAN port packet loss
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - High
Priority - Very Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - Belkin F5D8235-4 v1 installed with lede-17.01.4-ramips-rt288x-f5d8235-v1-squashfs-sysupgrade.bin
ports 1 and 2 do not auto negotiate to 1Gbit speed, WAN port sets also to 100Mbit and all works fine
when same or additional cabling is used on ports 3 and 4 they negotiate to 1Gbit, but WAN ports stays 100Mbit and 50% packet get lost going out the WAN interface, while LAN communication works fine.
ethtool do not recognize/cannot set/check eth0 so speed and duplex cannot be forced manualy
on factory firmware with same cabling all 5 ports work fine with 1Gbit

if there is anything I can do to fix/test let me know

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1475