Wired Razer Basilisk Mouse Not Detected by Synapse/PC

Hey SpringRolls, I have the exact same issue with my Basilisk Ultimate since this morning. It is also only when i try to connect the USB cable directly to the mouse that it doesn’t get recognized, when i try using the dock it works just fine.

I have also tried solving the issue by the steps you provided and still run into the same problem. I’m trying to figure it out as well but sadly i don’t have a solution as of yet. I’ll be watching this post for further troubleshooting ideas.

Buzz - same here. Exactly this morning,

Same here.

I have Razer Basilisk Ultimate.

From this morning the mouse stopped working in wired mode. Wireless working fine.

This issue has hit me too. I also tried to downgrade synapse and do a manual firmware for the mouse itself, but the update was greyed out, like OPs description.

Would be nice to get some info.

I’ve decided I’ll just go wireless for now since that is working. But I did see this article that I may try later.

https://mysupport.razer.com/app/answers/detail/a_id/353/~/my-razer-device-does-not-work-at-startup

Also what other details can you all share for assisting others? OS, CPU, USB2/3, etc. Not sure if there are any other details helpful but knowing if it is a specific CPU/OS can help narrow down the field.

I’m on Windows 10 with X570 motherboard, AMD 5950X, and using one of my 3.0 ports for the mouse.

Just updated my AMD chipset drivers after the issue started as well but no resolution for wired. The only Windows update I recall recently was a .NET update but I used the mouse just fine afterwards. Wasn’t until today the issue came up.

Same here with Razer Basilisk Ultimate. Stopped working on wired today (same driver initialization errors in Device Manager), wireless is fine. I’ve deleted Razer Synapse 3, cleaned all Razer directories in Program Files and Program Data, deleted all mouse drivers in Device Manager, restarted the PC. After that mouse worked fine on wired connection. After I reinstalled Razer Synapse 3, at first mouse was still working on wired. But the second Razer Synapse 3 started updating Basilisk’s drivers - it stopped working again. TL;DR: probably some faulty Razer Synapse 3 update. Uninstalled it for now, wired connection works fine.

So I noticed that Device Manager has 3 items listed as Basilisk Ultimate when I go wired and 2 fail to initialize the call as their error. I uninstalled and removed the 2 failed drivers after I had closed Razer Synapse. That seems to have made wire mode start working again as well but may be temporary.

One other thing I noticed though is I had never upgraded my firmware. I was still on 1.02.00 and 1.08.00 was released in 2023. Unfortunately you have to get wired working again for the mouse itself to update. Both the dock and mouse have a 1.08.00 update.

https://mysupport.razer.com/app/answers/detail/a_id/6375/~/razer-basilisk-ultimate-%7C-rz01-03170-drivers-%26-downloads

I’m having the same issue, replicated the steps the poster mentioned.

Mine works wirelessly, but when the cable is plugged in with Synapse installed 3 and 4… It stops working.

When uninstalled the mouse works fine on cable… I suppose it’s due to an update razer have released?

I have the same issue, I went to sleep and when I woke up this morning, mouse stopped working when plugged in. Mine is always plugged in because the battery is not lasting long enough. They need to fix it asap. Works in wireless when using dock or the usb dongle.

Used work laptop (no synapse) today, but as soon as i switched to my gaming pc it failed to detect the cabled Basilisk. Thought the mouse went faulty somehow, but nice to see I’m not the only one.

Dude I thought I was the only one having this problem, I’ve been trying to fix it for like 5h now. Hopefully someone will fix this quickly cuz it was really random, yesterday was working fine today while trying wasn’t working.

Hello! Mine stopped randomly this morning too, it was odd. So I tried a mixed variety of solutions, I’m not sure which one worked but something tells me it’s a combination of things.

• Uninstalling the two error drivers for the mouse that pop up in device manager, for those who do not know how to go through the device manager without the mouse. Click on one of the drivers in device manager before plugging in your mouse, then use the arrow keys, and hit delete on the two. Nothing worked.
• I then uninstalled Razer Synapse, and all of it’s files in Program Files, and AppData.  I even deleted all of the files I could delete in the Razer folder in the Program Files even ones that weren’t Synapse.
• I then tried uninstalling every Razer program, this is when something worked. I didn’t uninstall Cortex or Axon but I did still have Chroma. So I uninstalled Razer Chroma then suddenly when I plugged the mouse in after doing that it worked.

I hope this helps.

For me as well… Mouse worked yesterday like normal, and today it suddenly only works when connected via dongle. I tried using it on another pc and there it works fine when connected via cable, but on my main pc, i get the error code 37 when looking into it in the device manager. tried deleting its drivers and restarting the pc multiple times, but to no avail. 
Hope it gets fixed too, since i cant even use the driver updater, since it doesnt recognize the mouse when connected via usb-cable...

It worked for me! Thank you so much I’ve been fighting with this for the last 2 hours and I can finally relax. Have a great day!

I tried this method but it still didn’t work :/

I tried it as well, and it doesnt work...

Uninstall the Synapse is the only way for now.

Appears to be tied to Riot Vanguard. Unistall the program, then reconnect the mouse and it should begin working again. May need a restart if not. 

Same here wtf

Having all the OP listing issues now it just work fine after unistall rito vanguard and restart the PC, Great.

It Works!  How did you understand what’s going on ? How did you got it ?

Looks like vanguard is the problem. Just close Vanguard or uninstall it.

Same here!

It is 100% vanguard.  Once I uninstalled it I was able to update the firmware and now it works fine.

Hey, everyone! Thank you all for your input and advice on this issue. I didn’t think this thread would get so many replies and it’s my first one too 😅 It’s reallyyy nice to know that I was not the only one running into this exact same issue with the Razer Basilisk Ultimate mouse! I was just about to try closing out Synapse, connect my mouse to PC via USB wire, and then uninstall the two error drivers in Device Manager first for troubleshooting, but when I wired my mouse to my PC, it just started working like normal again lol… I guess it fixed itself/Razer fixed this issue somehow, at least for me. I updated the driver on my mouse from 1.06 to 1.08 successfully afterwards. Unfortunately, since this just resolved itself on its own, then I can’t really pick a “Best answer” or provide the specific troubleshooting that worked for me. Please feel free to continue using this thread for troubleshooting and discussion though! Community 🤜🤛😁