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--></style></head><body lang=EN-GB link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hello,</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>That’s not an IOS limitation. The 9300-48UXM only supports 100mbps and above. There isn’t any support for 10mbps on those switches. Here’s a link to the data sheet:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><a href="https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9300-series-switches/nb-06-cat9300-ser-data-sheet-cte-en.html">https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9300-series-switches/nb-06-cat9300-ser-data-sheet-cte-en.html</a></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Scroll down to here:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img border=0 width=702 height=347 style='width:7.3125in;height:3.6145in' id="Picture_x0020_3" src="cid:image003.png@01D813C4.5BCFEA60"></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m sorry to be the bearer of bad news.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>James<o:p></o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='border:none;padding:0cm'><b>From: </b><a href="mailto:lisa.notarianni@scranton.edu">Lisa Notarianni</a><br><b>Sent: </b>27 January 2022 20:51<br><b>To: </b><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br><b>Subject: </b>[cisco-voip] ATA 186 question</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>We just began Cisco switch upgrade to 9300s and ran into an unexpected issue.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>We have many ATA 186s out there (about 100) and did not budget for replacement as we were gratefully approved for the massive overhaul of the switches. This ended up being an unforeseen glitch.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>We cannot get the ATA 186s to work on this switch with this IOS version: </span><span lang=EN-US style='font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;background:white'>1 65 C9300-48UXM 17.03.04 CAT9K_IOSXE INSTALL</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>However, the 186s are working on this switch with this IOS version: </span><span lang=EN-US style='font-size:10.5pt;font-family:"Segoe UI",sans-serif;color:#242424;background:white'>1 64 C9300-48P 16.9.5 CAT9K_IOSXE INSTALL</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I know it is not an apples to apples comparison but I was wondering if anyone had a workaround for the newer model/IOS.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>We believe the problem is that the ATA186s are hard coded at 10Mbps/half duplex. Even if we change the switch port parameter from 0x00000000 to 0x000000ff the ATA will not register. The switch port is also configured at duplex auto but the slowest we can make the port is 100Mbps.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Is this not possible? I am hoping you Cisco geniuses have a solution </span><span lang=EN-US style='font-family:"Segoe UI Emoji",sans-serif'>😊</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><b><i><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman",serif'>Lisa Notarianni</span></i></b><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>University of Scranton</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>Telecommunications Engineer</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>Infrastructure Services</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>800 Linden St.</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>Scranton PA 18510</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt'>570.941.4325</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>