We have some folks here that are smarter than me on networking (ok most of you). I’ve never heard of this, how about you? Is it worth messing with?
This is a registry setting in the path Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters
LanmanServer is Windows networking. As in LAN, not Internet. Are you wanting to have increased performance for CIFS/SMB ? If not, I doubt this is any benefit whatsoever.
4 Likes
What I found depressing is that the article is all “should… should… may…”. Not once is there a “we tried it, and we got x”. That’s pretty poor tech journalism in my opinion.
Don’t get me wrong, I will probably try it as not everything happening on my network is going to the Internet, and I have a perpetual curiosity about tweaks. But it’s still pretty lazy writing, “how many words can I get out of this unverified thing I found somewhere”, and there’s no way I’d deliver something like that for publication. 
3 Likes
That’s a stretch! Post felt like an SEO play to me. These guys have to make money somehow 
1 Like
Well now, this is interesting. Ran some tests, using speedtest.net on a recent Acer Swift 1 laptop on a pretty vanilla install of Win 10 1909.
Before the registry change, stats from a fairly weak wifi connection were 18ms ping, 4.34Mbps down, 4.48Mbps up.
After the change, I ran 4 speedtest sequences. One ping was 19ms, the other 3 were 11, 9 & 10ms. Down was 11.37, 10.82, 9.10 & 9.90Mbps, up was 2.84, 5.64, 8.13 & 4.57Mbps.
I also had a result saved from a few days previously, using a wired connection via a USB3 ethernet adaptor - 6ms ping, 53.19Mbps down, 10.05Mbps up. Now the registry change had been made, I reconnected the Ethernet adaptor to the same USB3 socket used previously, and repeated the test. This time I got 7ms ping, 75Mbps down, 10.07Mbps up.
This certainly suggests that the parameter change has a positive effect on download speeds, possibly a slight improvement on upload as well. Haven’t had an opportunity to check if any difference on video streaming / video calls yet, but it certainly merits investigation.
As time permits, I’ll try the effect of the change on some other systems and report back.
Edited 14 Mar: somehow I transposed the “Down” and “Up” labels in my original wired connection stats - d’oh!
1 Like