IRC Connection reset by peer

[mca64]

In last few days i get disconnect wwithin few seconds after join a channel . Im using custom IRC and it worked for years.

PASS oauth:xxx
NICK mca64
USER 0 * :
CAP REQ :twitch.tv/membership
CAP REQ :twitch.tv/commands
JOIN #skryoo1004
001 mca64 :Welcome, GLHF!
002 mca64 :Your host is tmi.twitch.tv
*** 01:18:04 Połączono z #skryoo1004
003 mca64 :This server is rather new
004 mca64 :-
375 mca64 :-
372 mca64 :You are in a maze of twisty passages, all alike.
376 mca64 :>
CAP * ACK :twitch.tv/membership
CAP * ACK :twitch.tv/commands
JOIN #skryoo1004
*** 01:18:04 Dołączył: mca64
353 mca64 = #skryoo1004 :mca64
366 mca64 #skryoo1004 :End of /NAMES list
USERSTATE #skryoo1004
ROOMSTATE #skryoo1004
PRIVMSG #skryoo1004 :yeah i thought you can still do 5:3 in remastered
<01:18:07> trippylee: yeah i thought you can still do 5:3 in remastered
PRIVMSG #skryoo1004 :probably switched back to old graphics because this is a more serious game Kappa
<01:18:11> marisa46: probably switched back to old graphics because this is a more serious game Kappa
PRIVMSG #skryoo1004 :is this a TheClaude stream?
<01:18:13> langrisser: is this a TheClaude stream?

Please help

[Alca]

In general, CAP REQ should come first and they can be combined. USER is not required. You should wait for at least the 001 command before sending JOIN commands

< CAP REQ :twitch.tv/membership twitch.tv/commands
> :tmi.twitch.tv CAP * ACK :twitch.tv/membership twitch.tv/commands
< PASS oauth:token_here
< NICK username_here
> :tmi.twitch.tv 001 username_here :Welcome, GLHF!
  :tmi.twitch.tv 002 username_here :Your host is tmi.twitch.tv
  :tmi.twitch.tv 003 username_here :This server is rather new
  :tmi.twitch.tv 004 username_here :-
  :tmi.twitch.tv 375 username_here :-
  :tmi.twitch.tv 372 username_here :You are in a maze of twisty passages, all alike.
  :tmi.twitch.tv 376 username_here :>
> :tmi.twitch.tv GLOBALUSERSTATE
< JOIN #channel_name

[BarryCarlyon]

Are you PING/PONG-ing and in the event Twitch is not sending a PING, in a nice time, are you proactively sending a PING and listening for the PONG?