Synchronisation failed

[VaishakhKrypC]

After updating the latest bor version for amoy sentry my syncing is not happening, it's stuck on particular block number for more than 2 days.

We used this command to update the version
curl -L https://raw.githubusercontent.com/maticnetwork/install/main/bor.sh | bash -s -- v1.5.5 amoy sentry

Synchronisation failed, dropping peer peer=bc18345a4b2d1b37bae59e4981aac923094fadf0fe6553416965d763a801186a err="retrieved hash chain is invalid: mismatch error"

Whitelisting milestone deferred err="chain out of sync"

[manav2401]

We will need more info to debug this issue. Can you enable debug logs and attach them here? Moreover, can you share your bor config being used to start? Thanks!

[VaishakhKrypC]

@manav2401 - From beginning onwards we haven't changed the settings, using the same **config.toml**

Logs
Jan 31 09:43:53 polygon-amoy-testnet bor[74460]: INFO [01-31|09:43:53.774] Whitelisting checkpoint deferred err="chain out of sync"
Jan 31 09:43:57 polygon-amoy-testnet bor[74460]: INFO [01-31|09:43:57.493] Importing heavy sidechain segment blocks=2048 start=16,102,761 end=16,104,808
Jan 31 09:43:57 polygon-amoy-testnet bor[74460]: WARN [01-31|09:43:57.516] Synchronisation failed, dropping peer peer=bc18345a4b2d1b37bae59e4981aac923094fadf0fe6553416965d763a801186a err="retrieved hash chain is invalid: mismatch error"
Jan 31 09:43:58 polygon-amoy-testnet bor[74460]: INFO [01-31|09:43:58.380] Looking for peers peercount=0 tried=42 static=0
Jan 31 09:44:05 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:05.774] Whitelisting milestone deferred err="chain out of sync"
Jan 31 09:44:08 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:08.381] Looking for peers peercount=1 tried=26 static=0
Jan 31 09:44:17 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:17.773] Whitelisting milestone deferred err="chain out of sync"
Jan 31 09:44:18 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:18.452] Looking for peers peercount=1 tried=67 static=0
Jan 31 09:44:29 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:29.556] Looking for peers peercount=1 tried=55 static=0
Jan 31 09:44:29 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:29.773] Whitelisting milestone deferred err="chain out of sync"
Jan 31 09:44:39 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:39.805] Looking for peers peercount=1 tried=17 static=0
Jan 31 09:44:40 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:40.101] Importing heavy sidechain segment blocks=2048 start=16,102,761 end=16,104,808
Jan 31 09:44:40 polygon-amoy-testnet bor[74460]: WARN [01-31|09:44:40.111] Synchronisation failed, dropping peer peer=bc18345a4b2d1b37bae59e4981aac923094fadf0fe6553416965d763a801186a err="retrieved hash chain is invalid: mismatch error"
Jan 31 09:44:41 polygon-amoy-testnet bor[74460]: INFO [01-31|09:44:41.773] Whitelisting milestone deferred err="chain out of sync"

/lib/systemd/system/bor.service

`[Unit]
Description=bor
StartLimitIntervalSec=500
StartLimitBurst=5

[Service]
Restart=on-failure
RestartSec=5s
ExecStart=/usr/bin/bor server -config "/var/lib/bor/config.toml"
Type=simple
KillSignal=SIGINT
User=ubuntu
TimeoutStopSec=120

[Install]
WantedBy=multi-user.target
`