Just made a quick change from SMTP @gmail toe "Use Default" and ran a test and it's back to working again. This is hit and miss.

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34 minutes ago, PhanTomiZ said:

So how does this setting affect my Gmail account and the ISY for the "TLS negotiation failed? Sounds like a google password/authentication problem?

Nothing changes for your Gmail account. The change affects use of their smtp servers that you use to move email. It's well known that certain people abuse smtp to send spam and other garbage. Stronger authentication tries to ensure that the right people are using their smtp servers.

ISY supports Basic authentication for their smtp servers, Google no longer supports Basic authentication for reason describe above. They say you have to use their procedure to generate an approved strong password (16 character) if you want to continue to use Basic authentication..

BI now supports Oauth which allows you to use your usual Google username and password for authentication to their smtp servers.

Edited 9 hours ago9 hr by mmb

On 3/3/2026 at 3:16 PM, mmb said:

Google began phasing out Basic Authentication which is a simple password over TLS in 2022 with a final cutoff date of March 2025. I changed my ISY to their approved password for less secure Apps in 2022. Since then it hasn't missed a beat.

Yeah, that's why the wiki changed in 2022. Google finally phased out the simple password, but if users had already changed over to 2FA and the app password it has always worked that way. Nothing in that standing changed after 2022 or 2025. I've had mine setup using Gmail since I started with ISY994 in 2016+/- and aside from a few times can't recall there being a large issue with how the setup worked.

On 3/3/2026 at 1:02 PM, Ross said:

I've forgotten the process and will need to do some research.

The steps to setup (but also same to change) the app password are in the UD wiki, but it basically used the Google support steps to direct users where to go to setup/change the app password. But if you go the route of the support ticket please post back what troubleshooting finds and if there's a larger issue that is being addressed or might need to be corrected in the setup and ultimately in the UD wiki instructions. But since they work for some/most something else has to be the root for some accounts getting this error.

21 hours ago, Ross said:

Please offer your "Instruction Services" to UDI and write the definitive instructions to Migrate to an EISY! I needed it this past weekend.

What do you mean? All they did was copy/paste the UD Wiki information. The wiki has had this info (updated) since 2022 - and prior to that worked for how Gmail used to work. As for instructions about the migration they're in the wiki as well, but probably not the most easy to follow. They're simple and written for when Polisy and eisy were first released.

3 hours ago, Geddy said:

I've had mine setup using Gmail since I started with ISY994 in 2016+/- and aside from a few times can't recall there being a large issue with how the setup worked.

My ISY has been on Gmail since 2012/2013, likewise never a problem,. Back in the days of LeeG etc.