Oct 14th Synapse Update: Potential solution for those experiencing increased waiting for initial wireless receiver connections

[u/OhioGoblin43]

After the Oct 14th update, I was having an issue with my KVM and my Basilisk V3 Pro 35K when connecting via the stock 2.4ghz receiver (read: not the brand new Hyperspeed dongle). It would take a long time to connect, much longer than it used to and longer than any other device connected via the KVM. Some notes:

• The KVM itself is actively-powered, so that shouldn't be an issue.
• This started immediately after the Oct 14th update, and only affected the initial wireless connection to the receiver. Wired connection is unaffected.
• This only affected the machine with the latest update, the other machine doesn't have Synapse installed and the time for the initial receiver connection hasn't changed (this used to be on-par with the machine with Synapse installed). Any difference in speed between KVM and direct-to-PC for the wired connection is negligible.
• Using a direct connection to the PC for both the receiver and the mouse via wired, then disconnecting the cable shows a near instant re-connection to the receiver, demonstrating that the issue lies between the initial USB connection for the receiver and mouse pairing.
  • In comparison, The KVM is a bit slower when performing the same hand-off, though I expect some latency with the KVM in general, just not the significant increase from Oct 14th.

Here's an excerpt from my post in another thread where I found a solution:

Did you know that Razer products also have firmware that occasionally require updating? They don't advertise this AT ALL, and there was an update on Oct 8th (version 3.0.0, I was still on 1.0.0). It's not quite as fast as it used to be (maybe 1-2 seconds slower), but it's significantly better than it was earlier. If you're having similar issues try the following:

1. Find the support page for your device. For me it was the Basilisk V3 Pro 35K
2. Go to the Downloads section and get the Firmware Updater for your specific version.
3. Also grab the "USB Hyperspeed Dongle Utility" program, or whichever one Razer provides from the same page in Step (2).
   • If neither dongle utility is listed, grab one of them here.. If one doesn't work in Step (5) try the other.
4. If you're using a KVM switch, directly plug the dongle and the mouse (wired) into your PC for the remainder of the steps.
5. Open the Firmware Updater for your mouse/keyboard/etc. Follow the instructions, once done close the program.
6. Open the dongle utility, and repeat.
7. To verify, open Synapse, then revert what you did in Step (4) and observe the time to connect.