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About Bossnine
Community Record
105
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41
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Jan 24 2020
9:18 AM
To clarify, these symptoms only occur if the L3 switch in the network is in a stack? I seem to have similar situations but without the L3 being in a stack.
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Jan 24 2020
7:55 AM
I had something similar show up just yesterday. The remote end of the cable had a netgear switch attached, mind you it was a defective Netgear switch. once removed it tested fine
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I've upgraded a couple of sites to 26.6.1 with no apparent wifi issues so here's hoping that remains as I'd like to move the remaining over to that version as well.
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Jan 17 2020
5:29 AM
I considered that but the issue wasn't there with the Cisco branded SFP and looking at load its not anywhere near what should cause any issues. Yes, my first step (after replacing the SFP) was to update to the just released 11.30 code....no change. I would have to verify what fiber is in place, it was here way before I was but this particular run is probably only about 150', not a long distance by an means. The Meraki SFP is this model FTLX1371D3BCL-C1 (MA-SFP-10G-LRM) replacing the Cisco Part SFBR-7600SDZ-CS3
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Jan 16 2020
11:53 AM
We will be putting the Cisco SFP back in to see if it goes away for sure, just curious why it has now happened on two of the locations almost immediately after swapping SFPs.
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Jan 16 2020
11:21 AM
1 Kudo
I've read a few threads on this but my question/concern is slightly different. We are slowly migrating to Meraki switches since we have essentially all Meraki APs. Two schools that we have done we went ahead and replaced the Cisco 10Gb sfps with Meraki branded ones (since that is the recommendation - even if its the same part essentially) and since doing so I have random ports throwing the High CRC error on the router side of the connections. Occasionally it will go away, then come back. Replaced with another new SFP with no success on both ends. Fiber is the same as before the install. I can only think the new optics were dirty and not properly dusted before install and that is my next step, but anyone else have this issue with Meraki branded SFPs? Before we replaced the SFPs and still had the Cisco branded ones we didn't see any issues, it was more of a "hey we bought this might as well use them' situation.
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Jan 7 2020
7:43 AM
Just want to bring this up again since I recently ran into the exact same issue. Just tooling around in a particular network and noticed a 'very high CRC error' on a switch port that turned out to be a faulty optic. When I asked the users they indicated they had some intermittent troubles, why they didn't tell anyone is irrelevant but it had been going on for while unbeknownst. to me.
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Dec 13 2019
6:48 AM
1 Kudo
Currently refreshing our switching in about 40 buildings (schools and offices) with Meraki gear. Somewhere around 400 switches total by the time we are done.
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Dec 13 2019
5:27 AM
In my experience stacking Meraki switches I've seen it go both ways. Usually they seem to be able to stack while in use and other times I've had issues, I think it depends on the mood of the switch. Regardless, the downtime for a Meraki switch seems to be significantly less than the Catalyst switches we replaced.
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Dec 11 2019
10:30 AM
Based on eRate funding and funding in general I do feel this new model will be easier to manage from a financial standpoint, not so much from an inventory stand point as its more like Smartnet but I do understand the change. My question, I have currently 6 extra WAP licenses in my dashboard that I don't currently have AP's to use them (for whatever reason). What will become of those licenses?
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Having a similar issue on an SSID with WPA2 preshared key on Dell laptops with Intel cards. Seems making my channel width 20Mhz worked previously so going to try again with this particular network. Currently running 25.13.
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Dec 4 2019
11:24 AM
Also, in addition to the above....I found in a couple of my networks I had that error on my Meraki Core switch another tech had ports configured incorrectly, mismatches, and in fixing that removed my errors.
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Dec 4 2019
11:19 AM
I have several MS425's in production and not experienced anything like that. I have; however, experienced where one particular one seems to go offline briefly and randomly after we had big power outage on that side of town. I had thought it to be a power issue with the switch, or potentially a power supply...but after verifying I have good power and swapping power supplies I have wondered if it were something to do with a Cisco switch in this network and PVST (see other thread about all this). Never did I have to do a hard reboot though, so doesn't sound like this is your issue.
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Dec 4 2019
10:37 AM
This is something I have recently discovered, I have a large network location and (unknowingly) realized I have a lone old Cisco switch potentially causing issues. Reading all this I assume i need to change it to MST pretty quickly. It has been running for a few months now but only recently has it come to my attention.
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Dec 4 2019
10:32 AM
So this is only on MacBooks running bootcamp and Win10? Or does it affect running the Mac OS also?
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Sorry I forgot to update this. i guess I found the issue, at least for us. I only have MR42’s so could not test with other models; however, I tried multiple boards, aps, rooms, schools, etc to no avail. same symptoms as you describe with the particular model board. The only thing I found to make it work was to set my channel with to 20Mhz for that SSID and I Haven’t seen it return—-I’m surprised you say it returns for you after that change. we just started getting in new boards with a google device powering it and no issues at all. Ironically the new boards have a built in android hardware and the issue is on that hardware, but not the attached google hardware
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Dec 2 2019
10:51 AM
Those look promising, I may order a set and see how well they work. Thanks for the info.
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Dec 2 2019
8:43 AM
Not immediately, although I am actually excited for that in the future. Looks like my idea of rack shelves is my answer for these locations.
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Dec 2 2019
8:23 AM
Well foiled again, was hoping the article was wrong on the models supported; however, seems those mounting locations are not on the MS350s.
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Dec 2 2019
6:33 AM
1 Kudo
Actually yea, that might. Surprising our rep didn't mention these.......... Thanks, I'm going to check on this.
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Dec 2 2019
6:11 AM
I did a search and didn't find the exact problem (although all were caused by the same issue). The Meraki switches are beautiful, what with those fancy built in ears that are no adjustable. Many of our data closets are old random rooms being most of our schools are not new construction and that is causing concern when we migrate to Meraki hardware. The Cisco switch can adjust to stick out more in a tight space, many of which can not be changed without replacing the entire rack. Is there anything on market to help with the depth of a Meraki switch? A spacer of some kind? For now I've been putting rack shelves in to support the switch, or in one case I simply used Meraki AP boxes to separate the switches being installed. Its tacky, I dont like it....................
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Nov 19 2019
7:40 AM
I've been waiting to see if this update was going to be stable as I have about 2000 AP's bugging me about it.
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I did and am still migrating from a Cisco on Prem solution (8510 controllers) to full Meraki. We started with AP's and now have begun our switch upgrades, I still have a couple of schools on the Cisco controllers until I get to them. As was said, just replacing the APs is fairly easy and once they all replaced you can turn down the controllers.
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Nov 6 2019
11:11 AM
I have my root priority set to the core switch in the network but a few locations are still somehow wanting to use a core switch in another network. Would that be something to be concerned with?
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Nov 6 2019
10:52 AM
For me the Meraki DHCP is great, easy to use, and pretty fail safe from my experience. However, no P2P means some Apple functions (and others I'm sure) will not work.
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