BSNL FTTH slow speed and high latency

The problem is that most of the people in my village are using it for whatsapp and basic browsing. They use it to get in touch with their childrens working in different cities.

I'm the only one who uses it for latency sensitive things like meetings and remote server connection.

Since nobody is complains other than me, nobody is filling to fix it.

As per the modem, I'm using a Syrotech modem suggested by some BSNL engineer. He said it is certified with them.
 
@sloj isn't this MTU options provided by OLT?

Code: 
2025-03-14 00:01:36 PPP INFO [1518] ppp receive IPCP ACK

2025-03-14 00:01:36 PPP INFO [1518] ppp send IPCP Req options(addr=117.251.x;)

2025-03-14 00:01:36 PPP INFO [1518] ppp receive IPCP NAK options(addr=117.251.x;)

2025-03-14 00:01:36 PPP INFO [1518] ppp send IPCP Req options(addr=0.0.0.0;)

2025-03-14 00:01:36 PPP INFO [1518] ppp receive CHAP Success: CHAP authentication success

2025-03-14 00:01:36 PPP INFO [1518] ppp send CHAP Response [email protected]

2025-03-14 00:01:36 PPP INFO [1518] ppp receive CHAP Challenge name=bgl-cpf-dc-01

2025-03-14 00:01:36 PPP INFO [1518] ppp send LCP ACK

2025-03-14 00:01:36 PPP INFO [1518] ppp receive LCP Request options(mru=1492;authtype=PPP_CHAP|type(MD5);magic=0x246b6bf9;)

2025-03-14 00:01:36 PPP INFO [1518] ppp receive LCP ACK

2025-03-14 00:01:36 PPP INFO [1518] ppp send LCP Request options(mru=1492;magic=0xc11a3a33;)

2025-03-14 00:01:33 PPP INFO [1518] ppp receive LCP ACK

2025-03-14 00:01:33 PPP INFO [1518] ppp send LCP Request options(mru=1492;magic=0xc11a3a33;)

2025-03-14 00:01:33 PPP INFO [1518] pppoe receive PADS sess-id(1)
 
Try MTU 1460 bytes. That's the MTU BSNL used before their "upgrades" to the OLT and BNG servers.

Also maybe disable IPv6. I have heard that BSNL IPv6 is very flaky.
 
AFAIK BSNL is also flagging accounts using non-TEC certified ONT and Router (that does the PPPoE connection).

Both the ONT MAC address and MAC address sent during PPPoE authentication (by the separate Router when the ONT is in Bridge Mode) are supposedly checked by the OLT (ONT authentication) and BNG (PPPoE authentication) servers against TEC approved devices MAC addresses database.
 
@ka2107 sadly my router isn't supported by openwrt. But even if try with only ONT without bridge mode the issue persists. Also the ONT I have is from Syrotech and is certified by BSNL. I heard that they are also using syrotech OLTs.

One more argument I've heard is that the poor quality internet is because the BSNL started using lot of MTNL assets which are quite old and cannot handle the load. I don't know how much is true about this
 
I have given few written complains too at the the BSNL office, I think nobody cared read it. Any idea how I can solve this? I thought I could get it resolved with CPGRAMS but after writing complaints all these days, I don't have any hopes left
 
I have beeb also noticing high loaded latency for few months now. Cant even raise the issue at LCO they neither bother about these things neither they have proper knowledge how to fix it. Dont know what to do...
Even if I escalate with BSNL they will forward it to LCO to solve:).

If anyone is able to solve such issue, what will be the probable cause of these issue? i guess giving them detailed explanation and solution would at-least make them to look after the issues.

It used to be within 5-10ms range from un-loaded latency.
Also few days back there was huge packet loss even at google, cloudflare dns servers during eveing with spiked pings.
image.png
 
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