[FS#394] PPPoE/802.1Q issues on Linksys WRT1900ACS

[LEDE Bugs]

The following task has a new comment added:

FS#394 - PPPoE/802.1Q issues on Linksys WRT1900ACS
User who did this - Kevin Beranek (kberanek)

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I am actually running a more recent build (https://git.lede-project.org/?p=source.git;a=commitdiff;h=b9a408c2b49ccfa0e906bda00ef77f4002e401fd) than the build you mentioned.

I've tried exactly what you recommend a few times in the past, but it hasn't worked.  Nevertheless, I gave it a shot by just modifying my existing config, but it didn't work.

I then tried resetting the router using /sbin/firstboot and rebooting.  At that point I did see that lan and wan inferfaces switched and tried applying the same changes, but no luck.  I see exactly the same timeout error.  My /etc/config/network from that second attempt is below.  This is the only file I changed after resetting the router.


```
root at lede:~# cat /etc/config/network

config interface 'loopback'
	option ifname 'lo'
	option proto 'static'
	option ipaddr '127.0.0.1'
	option netmask '255.0.0.0'

config globals 'globals'
	option ula_prefix 'fdac:ae37:47e0::/48'

config interface 'lan'
	option type 'bridge'
	option ifname 'eth0'
	option proto 'static'
	option ipaddr '192.168.1.1'
	option netmask '255.255.255.0'
	option ip6assign '60'

config interface 'wan'
	option ifname 'eth1'
	option proto 'pppoe'
	option username 'user at provider'
	option password 'password'

config interface 'wan6'
	option ifname 'eth1'
	option proto 'dhcpv6'

config switch
	option name 'switch0'
	option reset '1'
	option enable_vlan '1'

config switch_vlan
	option device 'switch0'
	option vlan '1'
	option ports '0 1 2 3 5'

config switch_vlan
	option device 'switch0'
	option vlan '201'
	option ports '4t 6'
```
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=394#comment1311