topic Re: 96% packet loss when using Nvidia Geforce Now in Gaming

96% packet loss when using Nvidia Geforce Now

83dons — Mon, 07 Sep 2026 22:46:37 GMT

I have Full Fibre 500 plusnet service that is connected by ethernet cable to the router (Plusnet Hub Two). On running speedtest.net I get 332mbps download speed and 4.93 mbps upload which seems a little slower than the 500/75 advertised upload in particular seems low. On the weveform.com test I get a service rating of F pointing to bad bufferbloat. Using the Nvidia Geforce Now network test they say i get 96% packet loss which renders their game cloud streaming service unusable with my fibre package. I should easily be able to run this service from my package with the advertised speeds. Can someone please help me diagnose the issues here? All I have read so far suggests I need to purchase a better router but surely the one supplied by Plusnet should be able to handle this type of gaming service? The internet otherwise runs ok and I tried to ping -t 8.8.8.8 and zero packets are ever lost so it seems just the Nvidia cloud service that plusnet is throttling somehow. Please see attachments. What should I try next? I have asked on the Nvidis forums too but is more than likely a plusnet service issue.

Re: 96% packet loss when using Nvidia Geforce Now

markhawkin — Tue, 08 Sep 2026 06:22:32 GMT

There is something wrong here.;

Best guess, the test was conducted over WiFi and there is a WiFi issue from testing device -> router.

High packet loss on that path would also help to explain why the upload is so slow.

Try a cable and all will be well.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 06:25:52 GMT

This is using ip6 ethernet cable direct to router. Any further suggestions?

Re: 96% packet loss when using Nvidia Geforce Now

markhawkin — Tue, 08 Sep 2026 06:58:03 GMT

New cable then (or a good replugging).

Do you have another device that can do a wired speed test?

It's worth phoning up Plusnet as (on the basis of the wired packet loss) they should send a new router.

Beyond local cabling (ONT - router and router to device) then most "single user" full fibre faults turn out to be light level related.

By the way, I assume you mean Cat 6 cable as Plusnet doesn't (generally) support IPv6 (yet), I would also suspect the Plusnet Hub's performance with IPv6.

The download speed also suggests a fault (although not as much as the upload).

On my Plusnet (nominally 145 Mb/s service) I just got 150.7 Mb/s download and 28.9 upload using the Speedtest app.

You should be seening perhaps 510Mb/s down and a bit over 75Mb/s up.

The other thing to explore (and I hesitate to suggest this) is the network card driver. I know this is opening up a world of pain but if you get such poor cabled speeds I would think about deleting the network card driver and letting it re-install.

Re: 96% packet loss when using Nvidia Geforce Now

cpc6128 — Tue, 08 Sep 2026 07:01:44 GMT

Was the speedtest done with no other devices connected (cable or wifi) and with just a pc or similar device cabled and it wasn't actively uploading or downloading? If the bandwidth is being used then you'll be measuring what remains.

Is the cable connection direct to the router when testing because if it's going via other devices like powerline that will also impact the speed shown?

Is the cable fully inserted? (I had a cable here where the clip broke off and it showed terrible speeds because it wasn't in the socket properly) Check ONT, router and the PC.

check the WAN link speed is 1000/1000 on one of the router stats pages because this should show if the cable from router to ONT is ok or not.

Can you try with another device that doesn't have Geforce Now installed?

Finally looking online it seems that people can have great connections but the Geforce Now service gives them terrible speeds, so in part it may also be an issue with that service at the moment on top of your slower measured speeds.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 07:11:28 GMT

As a further test is it worth plugging the cat 6 ethernet from pc direct to the ont fibre box and bypassing the router? If packet loss continues surely this means the router is to blame. The bufferbloat test also comes out very bad as well the nvidia one. I think the router is confusing the gaming connection with all the other devices that use the WiFi network at sane time. I read somewhere that this type router doest have sqm or qos so drops packets with traffic management with gaming links especially. Might need a new type of router not the same type replaced?

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 07:12:36 GMT

Yes test done with several WiFi devices connected to router also.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 07:13:54 GMT

Cables seem connected OK. Wire router to pc is long cat 6 10m.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 07:15:45 GMT

Geforce now service wont even connect at all due to very high packet loss from the isp.

Re: 96% packet loss when using Nvidia Geforce Now

PhilipHeyes — Tue, 08 Sep 2026 07:44:06 GMT

Time to pick up the phone and report a very low upstream speed service fault ?

Perhaps do start by focusing on the 5mbps on the upstream that is so far out of the expected range it needs attention.

I am always very nervous about discussions of packet loss as these are so regularly mentioned by in game stats and utilities and are usually nothing of the sort, more often a grossly overloaded game platform dropping frames.

But in this case the lousy game stats look to be caused by tied the lack of upstream through put
and that is a lot easier for the support desk to understand and address.

Re: 96% packet loss when using Nvidia Geforce Now

markhawkin — Tue, 08 Sep 2026 07:55:58 GMT

@83dons

A couple of other thoughts.

Without knowing the actual endpoint(s) that the game connects to (and for obvious reasons I don't think that information will be easily found) it's a bit difficult to test the route end to end.

While the Waveform test is fine for revealing packet loss, even when everything is working well, the Plusnet router won't do well on bufferbloat tests.

Having said that, you have a fault. It might be the router, it might be the ONT, it might be a physical thing in the network or it might be your computer or cables.

" I read somewhere that this type router doest have sqm or qos so drops packets with traffic management with gaming links especially"

Yes, the Plusnet router isn't optimised for gaming. Even when the current fault is fixed, if you want to be able to set "Quality of Service" you need a router that supports that. Various manufacturers make products for that market. The Plusnet (or any ISP) router is for more general applications.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 09:45:22 GMT

So is it worth me plugging ethernet into the ont directly and doing a speed test and maybe waveform test to see if it connects ok and proves it's the router causing the issue?

Re: 96% packet loss when using Nvidia Geforce Now

PhilipHeyes — Tue, 08 Sep 2026 10:02:02 GMT

@83dons

Yes do the ONT speed test, if you still see a low upstream speed,
that confirms a service issue / fault in your street & not a Hub/Router issue.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 11:26:19 GMT

Slight update. Changed 10m ethernet cable and now getting better download 510mbps and upload 30mbps speeds. However the waveform test still shows bloated on upload especially and still 96% packet loss on geforce now test. I tried wifi and weirdly no packet loss at all but lower download 170mbps and upload speeds 20mbps. Any idea why it would work over wifi but not over ethernet despite that being much faster? I am away to try the ethernet direct to ont tests next. But I think I need to set up my network connection manually will follow google.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 12:39:30 GMT

Cant do the ONT test as the password and login weren't accepted and called plusnet who said that test cant be done direct. They have suggested sending a new router as didnt have any other answers. we did ont and router factory resets. I still have no idea if the plusnet two router works with this nvidia service or not or if I need to buy a new better router sometime. I will test the new router then call them back I guess unless anyone can think of anything to try. Have also tried two ethernet cables now and the second gave better speeds. Since the router resets everything is now even slower aargh!

Re: 96% packet loss when using Nvidia Geforce Now

ExForce9 — Tue, 08 Sep 2026 12:51:01 GMT

@83dons wrote:

Cant do the ONT test ... ... and called plusnet who said that test cant be done direct.

The support staff you spoke to is WRONG !

You definitely CAN connect a PC to the ONT and get a working internet connection.

Something about your network / PPPoE connection's settings was incorrect.

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 13:42:35 GMT

Hi i got it working as I had a typo on the username!

Now zero packets lost for the geforce test which i guess proves the router is the issue, seed is as expected (upload higher than with router download about the same). Waveform test is odd the upload wont even run. Latency seems a little high even in the ont.

I will test with the new router but it is the same model so I think will have issues. Any routers that anyone can recommend that might avoid all these issues it is looking like I might need a better one as the service network seems ok but their standard router rubbish.

See below:

Re: 96% packet loss when using Nvidia Geforce Now

PhilipHeyes — Tue, 08 Sep 2026 13:53:22 GMT

@83dons

When you spoke to Plusnet did you discuss the upload speeds have been dropping to as low as 5 or 6 Mbps ?

Might be interesting to boot your computer into Safe Mode + Networking an repeat the speed tests, sometimes the difference can be marked pointing to bloatware on the computer.

Re: 96% packet loss when using Nvidia Geforce Now

bmc — Tue, 08 Sep 2026 15:02:00 GMT

@83dons

If considering a new router have a look at hthe FritzBox 7530. A well regarded router used by Zen Internet. The AX version is WiFi 6 capable.

https://uk.webuy.com/search/?stext=fritzbox+routers

However, your best bet might be to look at gaming forums for recommendations regarding a gaming router.

Brian

Re: 96% packet loss when using Nvidia Geforce Now

83dons — Tue, 08 Sep 2026 15:22:14 GMT

They said they dont gauranteee 75mbps upload and it was at 40 with the new cable. They said to try the new router then get back to them if still issues with nvidia. I might try that and take some screenshots.