Justin, I tested from Ether1 which has the 82574L chip and do not see the problem. So it would seem to be tied to the 82583V chips.
Do you have any recommendations? I see it even on Baltic’s newer 1206 model which has the 1.8 GHz D525 ATOM CPU, so I don’t think it is due to having an early version. Should I just downgrade to 5.26 and call it a day? This combination of CPU and NICs seems pretty common though. Roc-box for example. From: Justin Wilson Sent: Sunday, January 03, 2016 10:00 PM To: af@afmug.com Subject: Re: [AFMUG] Mikrotik x86 and ROS 6.x problems on 100M Ethernet links Ask Brian from Baltic what chipset is in these? We had problems with the earlier versions of these. It boils down to the intel chipset used. Had the same exact problem. Justin Wilson j...@mtin.net --- http://www.mtin.net Owner/CEO xISP Solutions- Consulting – Data Centers - Bandwidth http://www.midwest-ix.com COO/Chairman On Jan 1, 2016, at 2:32 PM, Kevin Radunz <gol...@genevaonline.com> wrote: I think some weard problems started around 6.33. There are posts of different topics about things like Winbox and VPN traffic not working but traffic through the device was fine. Some thought MTU changes but I'm not sure I saw concrete fixes. I know earlier versions don't do this. I recently upgraded one of those RouterMaxx 1106 routers from 5.2 to 6.33.1 (I actually configured a new router and swapped hardware). Ever since, I have had performance problems with a couple ports that are connected to radios with 100M Ethernet ports. The most obvious symptom is that Winbox won't stay connected or can't download plugins, but I also see pings dropped even to the directly connected equipment. I was a bad boy making multiple changes at once, so I've been gradually walking them back in the lab on the original router, I upgraded it to 6.33.1 and the problem appeared. I dropped back to 6.31 and it was still there, but when I dropped back to 5.26 everything was fine again. I haven't tried earlier 6.x versions yet, 6.31 is the oldest x86 version I have handy. This is not a radio problem, I can reproduce it with a directly connected laptop if I force the laptop NIC to 100M FDX. Is anyone familiar with this problem? I can't find anything on the Mikrotik forums. I guess I can live with 5.26 if I have to, but I'd like to know what is causing this. Do I just need to change some configuration parameter? I know 6.x brought out hardware only queues, but I think that's for Routerboards, not x86. Is there a problem with the Intel NIC drivers included with 6.x? Any chance that an earlier or later version of 6.x will work for me? I see nothing in the change logs about it.
