Hi @PavelP thanks for helping out.
I figured out the problem eventually. The teradata jdbc drivers have 2 .jar files, the tdgssconfig.jar does not actually contain any drivers, thats why there was a WARN msg and not an error msg. the next INFO msg says multiple versions of drivers found, and thats because in the terajdbc4.jar there are 2 driver files one in the 'ncr' folder one in the 'teradata' folder. the next INFO msg says it loaded the driver in the 'teradata' folder, which is the correct thing to do.
The actual problem had nothing to do with this frustratingly, it was because in creating identities i had wrongly entered my splunk admin user details instead of the teradata user details, I noticed this once I switched to DEBUG on my log.
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