There are a number of troubleshooting techniques you may try to fix the issue if Google Chat not Working in Chrome. Here are a few probable answers:

Clear your browser's cache first. This can occasionally fix problems with a website's operation. To accomplish this, open Chrome's settings and select "Privacy and security" > "Clear browsing data." Choose the proper choices, then select "Clear data."

Disable browser extensions: Some browser extensions may prevent some websites from functioning properly. Disable your extensions for a while to check if any are generating issues. Click "Extensions" on the left sidebar of the Chrome settings page. Turn each extension off individually to see whether Google Chat resumes operation.

Disable hardware acceleration: In some cases, websites may not function properly when hardware acceleration is enabled. You may turn it off by going to Chrome's settings and selecting "Advanced" > "System." Turn off "Use hardware acceleration when available" and restart Chrome after that.

Verify that you have installed the most recent Chrome version by checking for updates. Compatibility problems might result from outdated browser versions. To check for updates, open Chrome's settings and select "About Chrome". Install any updates that are available, then restart the browser.

Disable ad blockers: Ad blockers occasionally prevent websites from functioning properly. Disable any installed ad blockers or content filtering extensions momentarily, then see whether Google Chat begins to function.

Try using incognito mode: Launch Chrome's incognito window and try using Google Chat. If it functions well in incognito mode, it is possible that the problem is with a configuration or extension in your default surfing profile. After that, you may carefully turn off certain extensions to search for the offender.

Flushing the DNS cache can assist in resolving network-related difficulties. Enter the command "ipconfig /flushdns" (Windows) or "sudo killall -HUP mDNSResponder" (Mac) after launching the Command Prompt or Terminal, respectively. then attempt to access Google Chat once again.

Look for firewall and network restrictions: Make sure that Google Chat is not being blocked by your network or firewall settings. To find out whether there are any limitations, speak with your network administrator or IT support.

Reset Chrome to its default settings: If everything else fails, you may do this. Navigate to Chrome's settings, select "Advanced," then scroll down to the "Reset and clean up" section and select "Restore settings to their original defaults." This may reset your browser's settings, but it can also fix any setup problems that are interfering with Google Chat.

In the event that none of these fixes work, you might want to think about using Google Chat in a different browser or getting in touch with Google Chat support for more help.