@David-TP Thanks for the reply.

 

I tried a new cable and different port. Same result.

My ISP has now sorted out my internet connection and I am now getting over 740Mbps, it's even spiked to 790 a couple of times. But the speeds I'm getting from the X68 hasn't changed much. It tends to be around 95Mbps most of the time, but it has reached 130Mbps on occasion, so I don't think it can be capped at 100Mbps.

Tried changing the QOS to 750 and 50. It didn't seem to make any difference. It was disabled before I changed it.

Iv'e had the Decos for a while now, over a year I guess. I have four Deco E4 units around the house and the X68 in the garage next to the modem. Geographically, the garage is under the house, and there is an E4 almost directly above X86. The rest of the E4s are on the same level with some walls in between but not very far apart. Twelve meters max.

@David-TP, I tried changing the QOS to 1000/1000. I'm still getting around 130Mbps on wifi from the x68. Is there anything else I can try? Thanks.

  @David-TP I did as you suggested, removed the four E4s and tried again. I got some strangely anomalous results.

• Connecting directly to the modem with a cat5 cable - 154Mbps
• Connecting to the X68 with wifi and all E4s removed - 363Mbps (!!)
• Connecting directly the the modem's wifi - 285Mbps
• Connecting to the X68 with a cat5 cable (i.e. modem -> cat5 -> X68 -> cat5 -> laptop) - 146Mbps (with the E4s all removed I'm assuming this is what you meant by testing the ethernet speed from the X68?

 

First thing, my 740Mbps from the modem seems to have evaporated... now much, much slower. Maybe it's the time of day, it's nearly 4pm Thursday afternoon here, so maybe the lines are busy. I'll try it again tonight around 11pm. 

 

Second, I don't understand how the X68 can be delivering a wifi speed twice as fast as it seems to be receiving from the modem. Unless the speed is fluctuating wildly in between tests. But I did them all multiple times with similar results. 

 

The current version is, according to the app, the latest. 1.2.5 Build 20240805 Rel. 75285 on the X68

The E4s are all 1.1.2 Build 20250226 Rel. 35508

 

Thanks, Ian

I haven't got a cat6 cable so I'll have to get one. The laptop I'm using for testing actually isn't mine, it's a friends, but I can get her to update anything that needs updating. She hardly ever uses it so it could be needing an update. It's also Windows, which I know nothing about. I use Linux, and haven't used Windows since M$ stopped supporting Win7. Just tried a speedtest again from my PC, 92Mbps. It's 6am so shouldn't be as congested as 3pm I would have thought. :-\

  @David-TP 

I tried a cat6 cable to connect the modem to the X68. Results were essentially identical (87Mbps for the cat5, 85 for the cat6).

 

I updated the laptop to the latest versions of everything (took hours, my friend hadn't done any updates for months, years maybe). Results still similar.

 

Today (around 3pm) wifi results were 327Mbps for the modem's wifi, 332Mbps for the X86. So yeah, it seems the X86 is working.

 

At my PC I'm getting 92Mbps with the PC connected to an E4 with a cat6 cable, 114Mbps with the PC connected to the mesh wifi. Bit disappointing, I would was hoping for 300+. Is that too optimistic?

 

Just for comparison, I got 118Mbps with the PC connected to the modem's wifi. A pretty good effort as there is one wall, one floor and about 30 meters separating the PC from the modem.

 

Thanks, Ian

 

PS I've raised the issue of the dramatic drop in speed with my provider, TPG, this morning. They haven't responded yet.

  @David-TP 

Well, I've solved part of the problem. I am now back to 750+Mbps from the modem. The problem, I'm embarrassed to admit, was because the laptop I was using to test doesn't have an ethernet port so I was using an ethernet to usb cable to do the testing. Now it seems that adaptor was the problem. I shlepped my desktop PC down to the garage so I could connect it directly to the modem with a cat6 cable and test the speed. 770Mbps. I couldn't believe it. The mystery is, that the adaptor DID work, for a couple of days. I did see 740Mbps on the laptop with it connected to the modem with the adaptor cable and cat6 cable.Then just as suddenly I was back to 120Mbps. It's a mystery. But, dkdc now. The modem is working as far as I'm concerned. Now it's just a question of why I'm not getting anything like that speed from the mesh. For comparison, the Modem's wifi delivers well over 600Mbps when my PC is next to it.

So, back to plan B. Why is the mesh delivering 95Mbps to my PC?

Thanks.