TP-Link Archer C6 PPOE issue with BSNL FTTH

[Kick933]

I have just received the much awaited C6 from Amazon.
But it got a wired issue.
I have set the dumb ONT into transparent bridge mode and router usually work great after setting up my BSNL FTTH profile.

But,as soon as their is a LOS,the C6 won't initiate auto-connect.I have to go to the management page and click on connect.
It seems that I am missing something.Can I hope to get some help as it has got very frustrating since signal drop is common at my place,albeit for 2 minutes every 5 hours.

 

[abbyck]

@abbyck any success in flashing OpenWRT in TP-Link Archer C1200? Cause i thought it'd be better than this stock firmware and yeah, it's v2 (EU) btw

I have the same model and revision. Read somewhere on OpenWrt forum that, Due to unavailability of Broadcom wireless drivers for this device supporting Archer C1200 will not be possible. I have abandoned it for now.

 

[svr]

Ok,so the issue was with the router....
Just for clarification,VLAN tagging is needed for BSNL to connect.
I had tried everything but the router refused to tag the packets with mentioned VLAN.
So,I had to set VLAN tag from my ONT which reset after each restart.
Got replacement,it is working like charm....

@Kick933 Could you please elaborate little more about it. I am having TP-Link C6 and Netlink ONU, I tried almost every combination mentioned on other threads by @varkey and @pothi. I having intermitted connectivity issues, so I would like to move the PPPoE to C6.

@varkey / @Kick933 could you please help me configuring it?

I am attaching my configurations

 

[varkey]

The PPPoE auth logs from the Archer C6 looks like auth is happening. What kind of issues are you seeing when in bridge mode?

Also, when using it in bridge mode, try with the Service Mode as Other

And try with a lower MTU, 1492 would mostly likely cause issues.

@svr

 

[svr]

@varkey I tried the following scenarios

• Tried with MTU 1460 on bridge mode, but it seems the router resetting it to 1500. Result was same, I can see th PPP logs on the C6 system log.
• Changed to Other on Service Mode, result was same. PPP logs are showing on system logs
• Disabled VLAN tag on ONU and enabled on C6, PPP send requests are there but no data getting back.

@Kick933 can you please share your configuration?

 

[abbyck]

@svr try setting the MTU to 1454 or try lower in your TP-Link router and check.

 

[Kick933]

Hey there,sorry for late reply.
Please check the following checkpoints-:
1. LAN DHCP should be disabled,unless absolutely necessary.
2. Oh,please check there is an RA service available.It should not be,but still to be sure.
3. DHCOV6 should be disabled.Rhese are precautions as they interfere with link performance of RA service.
I did the following-:
Reset my ONT.
DISABLE DHCP for both IPV4 and IPV6.
Create a WAN bridge profile and perform port binding.(I have ZTE based ONT which have only one port,so no port binding required)
I suggest using VLAN tag since It needs more processing power from C6 which is not really having a strong processor and high TDP.So,I suggest using VLAN tagging in ONT.
Oh.,can you tell me if BSNL is using MAC BINDING for PPPOE Auth.
It appears to be such issue.

Nothing much needed here.

 

[svr]

@Kick933 and @abbyck thanks for the suggestions and steps. I tried those and no luck there.

BSNL is not using MAC binding, I confirmed it with them. Also I tried PPPoE from my computer and it seems to be working perfectly. So the issue will be on my TP-Link router.

Do you have any suggestion on the TP-Link configuration part? @Kick933 @abbyck @varkey

 

[Kick933]

Hey,I would love to help with anydesk.
DM me your free time....

 

[varkey]

@svr Are you on the latest available firmware? Some older firmware versions did have a broken PPP client causing intermittent issues.

However, does it not establish a PPPoE connection at all?

 

[svr]

Hey,I would love to help with anydesk.
DM me your free time....

I really appreciate your help, but I only have my company laptop with me and anydesk is not working on that. I guess they disabled it.