Cisco Switching/Routing :: C3560-24P Spontaneously Rebooting When Clients Try To Print

Feb 19, 2013

I have a C3560-24P PoE switch, running on a very small network with nothing special about the endpoints or the configuration (5 laptops connecting via 1 wireless AP, 1 firewall uplink, a networked printer and one conference room phone using PoE.   That's it.)   I actually have inline power turned off on all the non-PoE device ports.
 
We are encountering a very strangle anomaly where if a client attempts to send a print job through the switch, to the network printer, the printer makes a noise as it if's begun to initialize and then the switch immediately goes into a reboot.   Also the reboot appears to immediately drain all he batter power from the UPS unit that it's connected to.   The unit is an APC SmartUPS 750 (500W, 750VA) and when the switch reboots the load on the UPS jumps to well above 100% until the switch appears to 'level out'.  Is that kind of power draw normal when rebooting a C3560?
 
Switch details:
IOS version: c3560-ipbasek9-mz.150-2.SE1
128MB Memory
512K nvram
Model Revision: F0

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Cisco Switching/Routing :: WS-C3560-24PS / WS-C3560-48PS - Port With WAP Goes To Err-disable?

Oct 11, 2012

We have a Cisco switch in each office and every now and then the port that has the D-Link Wireless AP (DAP-1522) connected to it goes to err-disable state. Actually sometimes even a regular port that has a cisco phone connected may also go to err-disable state (less often). So I have to telnet into the switch and issue shut and no shut command on that interface to get it back to life, then it works for a few days or weeks until it happens again. Any suitable configuraiton for that interface, that would prevent that from happening or a workaround ?
 
Here's the info:
 
Model: cisco WS-C3560-24PS and cisco WS-C3560-48PS
Image:c3560-ipbase-mz.122-35.SE5.bin
 
This is the log from one switch:

31w5d: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/2, putting Fa0/2 in err-disable state
31w5d: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 74e2.f592.f7f2 on port FastEthernet0/2.
31w5d: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed  state to down
 
And from another, which is almost the same:

5d10h: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/3, putting Fa0/3 in err-disable state
5d10h: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address d8a2.5e31.2cf6 on port FastEthernet0/3.
5d10h: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
5d10h: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to down
 
Here's the configuration of fe interfaces (they are all alike):

interface FastEthernet0/2
description Voice & Data Combo Port
switchport access vlan 11
switchport mode access
switchport voice vlan 15

[code]....

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Cisco Switching/Routing :: WS-C3560-8PC - MGT Vlan Goes Down

Oct 24, 2012

I have a 3560-8PC in which the mgt vlan randomly (twice in one day or 2 weeks later) goes into the down state and will return w/o any interventaion 15-20 minutes later. Int G0/1 is the uplink to a 3750. I dont think its a layer1 issue at this time since i have seen it work just fine for over 2 weeks and drop again. I don't see any errors on the 3750 either.
 
WS-C3560-8PC       15.0(2)SE             C3560-IPBASEK9-M
 LOG:
----------------------------------------
.Oct 20 19:34:37.533 EDT: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changeds tate to up

[Code].....

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Cisco Switching/Routing :: C3560 SW IOS Upgrade?

Nov 23, 2012

I have C3560 switches in my work environment. I want configure ssh on that switch but the IOS what they have 'c3560e-universal-mz.122-58.SE2' not support. As per advised I was triying to upgrade 'c3560e-universalk9-mz.122-58.SE2" for all my access switches.
 
I successfully upgraded for two switches.
 
I have two problems now
 
01. I upgraded the IOS successfully one Switch but the Poe is not working. What is the reason ?
 
02. After upgrade the IOS, the out put is as follows
 
Switch   Ports  Model              SW Version              SW Image
------   -----  -----              ----------              ----------
*    1   30     WS-C3560E-24PD     12.2(35)SE5             C3560E-UNIVERSAL-M
Cisco#sh boot sys

[Code].....

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Cisco Switching/Routing :: Does C3560-12PC-S Run OSPF

Nov 21, 2012

I am in a doubt if the 3560-12-PC-S supports OSPF. Datasheet says we need IP Services image. But 3560-12PC doesn’t have the option with IP Services. Then I havigate to [URL] how?
 
So, any clues whether or not this box can run OSPF?

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Cisco Switching/Routing :: C3560 / Unexpected Behavior With SSH?

Feb 5, 2012

I have a weird situation with some switches.
 
Switch .55 can ssh into Switch .57 but cannot ssh into Switch .56.
Switch 56 can ssh into Switch 55 and ssh into Switch 57
Switch 57 can ssh into Switch 55 and ssh into Switch 56
 
The software on .56 is:
 
C3560 Software (C3560-IPBASEK9-M), Version 12.2(55)SE3, RELEASE SOFTWARE (fc1)
 
I noticed on .56, when I do a show ip ssh I get: SSH Enabled - version 1.5. It doesn't say version 1.99 like the others even when I configure version 2. Is this a bug I am running  into?

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Cisco Switching/Routing :: C3560 / How To Configure SLA Monitoring On L3 Switches

Feb 27, 2013

how to configure SLA monitorin for Dual Path default route in Layer 3 switches, like C3560?

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Cisco Switching/Routing :: C3560 / Can't Disable Telnet For Vty Lines

Oct 24, 2012

#sh run | inc user
!
username USER0 secret 5 $1$passwordusername USER1 privilege 15 secret 5 $1$passwordusername USER2 privilege 15 secret 5 $1$password
!
#sh run | inc aaa
!
aaa new-modelaaa authentication login local_authen localaaa authentication login radius_authen group radius localaaa authorization consoleaaa authorization exec local_author localaaa authorization exec radius_author group radius localaaa session-id common
!
#sh run | begin line vty
!
line vty 0 4access-class 3 inexec-timeout 15 0authorization exec radius_authorlogging synchronouslogin authentication radius_authentransport input sshline vty 5 15!sh verCisco IOS Software, C3560 Software (C3560-IPSERVICESK9-M), Version 12.2(55)SE6, RELEASE SOFTWARE (fc1)
 
the intent of the above is that management connections will only be accepted via SSH, and all of those will be authenticated via RADIUS, unless it's down, then it will use the local username/pw combinations, most of which are given Privledge level 15. Telnet should never work.SSH works as expected (authenticates via RADIUS), but the problem is that Telnet also works, will ONLY use the local database (never RADIUS), and, for some reason, leaves the users at Privledge level 1, instead of the configured 15.Essentially, it seems that at every point I have told it to do something that isn't the default with regards to telnet, it ignores me.Prior to a recent IOS upgrade, the switch didn't support SSH, so the previous config was Telnet with RADIUS, and that worked fine.

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Cisco Switching/Routing :: C3560 Swap Out Not Ping Across Network

Jun 17, 2012

Had a switch die over the weekend, a c3560, per our normal procedure I pulled the hardware put a very basic config on it(vlans, portchannel, uplink ports, ip of management vlan, con and vty security, snmp, enable secret, and hostname).  Then I use solarwinds orion to upload a copy of the old config to bring the switch back to the same state as the one that failed.  Its a system that has worked for us 3 or 4 times in the past.  But this time when the base config was on the box it couldnt ping across the network.I have tried clearing the arp cache and the dynamic mac tables, i verified the routing tables and even removed the 10.1.185.128/27 route and re-added it, saw the routing update go across to the other 65k, tried bouncing the edge switch(i cant bounce the 65k's), took down the po between the edge and 65k.

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Sep 4, 2012

I have a c3560 switch that has two gig fiber modules in it.  I need to uplink fiber to one of these at 100mb.  This is because this port will be rate limited to 20mb and 10 percent is the lowest you can go with the rate limiting command.  Is there a 100mb fiber module i can insert in the 3560

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Cisco Switching/Routing :: C3560 Output Drop Without MLS QoS Enabled

Nov 24, 2012

We are seeing output drops on a C3560 switchport, this port does not have QoS enabled -- application does not need special qos treatment, as long as packets are not droppd, so I suppose all traffic will share the same queue? then how should I read the output of "show platform port-asic stats drop" which indicates that it is queue 3 weight 2 drop? I am wondering what is the best way to fix this? enable mls QoS and increase queue 3 bandwidth share on this interface or just increase the output queue depth?
 
switch#sh mls qos interface gi0/1
GigabitEthernet0/1
QoS is disabled. When QoS is enabled, following settings will be applied
trust state: not trusted

[Code]......

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Cisco Switching/Routing :: WS-C3560-24PS - Rate Limit And QoS

Mar 4, 2012

I am having an issue with VoiP phones giving me an insufficient bandwidth message.  I have three remote locations connected to our main building using 2 Mb point to point ethernet solutions through TWC.  Each remote location has a Cisco WS-C3560-24PS running IOS C3560-IPBASE-M, version 12.2(25) and have the cable modems plugged into port 1 on them.  The remote buildings are labeled 192.168.101.xxx, 192.168.102.xxx, and 192.168.103.xxx.  There are 14-16 VoiP phones in each remote building.  The main building being in the subnet of 192.168.100.xxx.  I have the 3560s connecting to a single port on a 2801 in the main building, all using the subnet of 192.168.253.xxx  The phone server sits in our network at 192.168.100.203.  I have created the ACLs, class maps, and policy maps on all of the equipment. 
 
For the remote buildings I have the following:
 
ACL
===========
Extended IP access list VOIP
permit tcp any host 192.168.100.203 dscp ef
permit tcp any host 192.168.100.203 eq 5566

[Code]....

I have put a hub in to capture traffic via Wireshark to see if DSCP flags are being appropriately marked and I do see that all VoiP packets are getting marked with as EF.  However, I have been receiving phone calls from people in the remote buildings stating that their phones will cut out, flash Insufficient Bandwidth on the LCD displays and then the call will cut back in.  I am wondering if the 2801 is not applying QoS with the rate-limits in mind since it is set to 100 Mb, or is it an issue with trying to take 3 remote locations and bring them down into 1 port on the 2801?

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D-Link DIR-825 :: Clients (wired And Wireless) To Loss Connectivity / Router Rebooting Itself Periodically

Aug 6, 2010

As I continue to have various issues with my revision A version of the DIR-825, does an updated firmware is in the works?  Or has revision A been DE-supported by Dlink?

I'm still having issues with: Share port printer no longer being recognized/usable until router rebootedLoss/overload of router which causes all clients (wired and wireless) to loss connectivity Router rebooting itself periodically

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Cisco Switching/Routing :: Can C3560-24PS Switch With 32 MB Flash Be Loaded With IOS 15

Jul 23, 2012

Can a C3560-24PS switch with 32 MB flash be loaded with IOS 15? Will it be able to execute the code and function properly?

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Feb 16, 2011

I have two  layer 3 switches C3560 and C3750 Cisco switches with ios version "ipservices-mz.122-35.SE5".Now with the current ios version, these layer 3 switches are not supporting object group.so my question is , do i need to upgrade the ios, for this feature, if yes, which version ?

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Cisco Switching/Routing :: Configure C3560-24TS / QoS Control By IP Or Subnet?

Jun 28, 2012

I need to configure the C3560-24TS, QoS control by IP or subnet.i tried to study books and videos many times but still feel i am not well known about QOs...

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Cisco Switching/Routing :: C3560 DHCP Server For Nortel IP Phones

Oct 7, 2012

I just trying to setup a dhcp server in my catalyst 3560 switch for a nortel ip phones. I show you mmy configuration:

VOICE VLAN: 3
DATA VLAN: 1

S1:10.2.110.200
port:4100
Nortel IP Phones: IP 2002 (Firmware Version 0604D9H) & IP 1110 (Firmware Version 0623C7)

Switch Configuration:
aaa new-model!aaa session-id commonip subnet-zeroip routing!ip dhcp pool datos network 10.2.100.0 255.255.255.0 default-router 10.2.100.1 lease 0 2!ip dhcp pool voice network 10.2.110.0 255.255.255.0 default-router 10.2.110.200 option 191 ascii "VLAN-A:3" option 128 ascii "Nortel-i2004-A,10.2.100.200:4100,1,5." lease 0 2!!!!no file verify autospanning-tree mode pvstspanning-tree extend system-id!vlan internal allocation policy
[Code]...

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Nov 26, 2012

I've got a 1941 router that keeps on rebooting by itself every minute. currently, there's no power issue.
 
I've detected the show version returned a bus error. Is this an IOS bug?
 
ROUTER uptime is 1 minute
System returned to ROM by bus error at PC 0x222FE2D4, address 0xD0D0D71 at 14:27:13 SGT Tue Nov 27 2012

[Code].....

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Cisco Switching/Routing :: Cannot Configure Speed In Giga Port On WS-C3560-24PS-S

Oct 27, 2011

I can´t configure speed in a giga port on WS-C3560-24PS-S switch(config-if)#speed ? no negotiate  Do not negotiate speed
 
do you know if the port support speed 100??
 
because I need to connect with 2955C-12 switch in one port: 100BASE-FX (Multimode Fiber) uplinks, this port its only 100mbps?
 
and the switch C3750G-12S-E can I configure the ports on 100mbps?

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Cisco Switching/Routing :: C3560 / Number Of Supported Spanning Tree Instances?

Sep 9, 2010

I'm having some weird issues with our 3560 that's connected to an MPLS line.  The speed of the port plugged into the providers equipment is 100Mb, but we're only allocated 10Mb of bandwidth from them, I tried to police our traffic out of the port using srr-queue bandwidth limit 10, however when I do that I get some really weird bandwidth results. 
 
Using iperf I've run bandwidth tests with srr-queue bandwidth limit enabled and with it disabled, when it's disabled I get the full 10Mb as expected, however once I enable it I'm lucky to get 5Mb, and while the test is running connectivity between sites is almost useless (which is not the case if I disabled bandwidth limit).  Is there anything special I should be doing when I have this enabled?  I also have priority-queue out enabled with only one dscp marking placed in queue 1, with very little traffic hitting that queue, but regardless of what I do I can't get the expected bandwidth with the bandwidth limit command, even if I place my iperf traffic in that priority queue. 

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Jan 3, 2013

I need to replace an older 3560 with a new 2960-S and am wondering if the SX SFPs I already have will be compatible with the 2960-S. [code] I cannot find any way to get the part numbers of the SFPs.

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Cisco Switching/Routing :: C3560 Number Of Supported Spanning Tree Instances

Nov 16, 2011

My clients switch is running out of Spanning-Tree instances (c3560 only supports 128 instances).  I know that running RSTP with VSTP can mitigate this that all instances over 128 will be handeled by RSTP, but before I implement this are there any other thoughts out there on how to mitigate this.  Would MSTP be able to handle more STP instances or MISTP perhaps?

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Cisco Switching/Routing :: 3750x Rebooting Itself Randomly?

Nov 24, 2012

I have a switch which is rebooting it self, we bought it a year back,its a new switch, i did not find any error on sh ver after rebooting. I am using OP manager, i did not receive any alerts. I have done all diagnostic test, all are passed, i did not find any problem..

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Cisco Switching/Routing :: Cat 4500 Supervisor 7-E Is Rebooting

Apr 24, 2013

I'm having a trouble with a 4510R+E switch.  The WS-X45-SUP7-E supervisors are constantly rebooting, and we can see a 'critical software exception reload' reason. We have checked the logs
 
______ uptime is 5 weeks, 1 day, 19 hours, 3 minutes
Uptime for this control processor is 37 minutes
System returned to ROM by reload

[Code]....

What can we do to solve this incident?. Everything was working fine, and suddently the problem arose.

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Cisco Switching / Routing :: C3560 - 48PS Port / Get Any Device To Talk To DHCP Server?

Sep 11, 2011

I have a c3560 that on Port 1 I can not get any device to talk to the DHCP server.Previously there was a client connected to this port however over the weekend he stated he lost connectivity.

In my troubleshooting I have connected that client to another port and now he is good to go...I connected my laptop and tried to connect to the network however I could not.I checked the logs and did not see anything that lead me to think it was having problems.

Is there another way to shut this down and hopefully start it back up without having to restart the entire switch?

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Cisco Switching/Routing :: Polycom IP 430 Phones Constantly Rebooting?

May 29, 2013

I just installed a refurb'd 3560 48 port POE switch and configured all ports on VLAN100.  All Polycom IP 430 phones (with power adapter and without power adapter) constantly reboot every couple minutes.  Any Cisco 7960 phone does not constantly reboot and works correctly.  When I plug a small unmanaged switch into a 3560 port and then plug the Polycom phone into the unmanaged switch powering the phone with a power adapter, the phone works correctly.  So it seems that the 3560 is causing the Polycom to reboot. 

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Cisco Switching/Routing :: 3560 Switch Is Rebooting Daily

Feb 12, 2013

I have observed a situation where one of our cisco switch 3560 is rebooting daily at periodic times.We have checked the power cables and source everything is fine and still clueless whats causing the issue. [code]

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Feb 27, 2013

I have two like switches in a stack (WS-C3750G-48PS 15.0(1)SE2 C3750-IPBASEK9-M). Switch#1 is the master and is the one that needs to be replaced. Can I force Switch #2 to be the master, then power down switch#1, remove switch#1, insert the replacement, and then power on the newly added switch without shutting down or rebooting switch#2?

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Cisco Switching/Routing :: IP Phones Do Not Start After Rebooting (Switch 4510)

Oct 23, 2012

I'm having some trouble with a 4510 Switch Line Card. I need some recomendations for troubleshooting it.We have some PoE phones connected to the card number 3. When those phones were restarted, they did not go up again. In order to discard wiring issues, we connected the phone directly to the card 3, and the phone did not go up. If the phone is connected to a different card, it goes up correctly.

Additionally, to restore the service, these phones were migrated to other cards, but when we disconnect the equipment, ports in line card 3 remain in an up / up state (and nothing is connected to those ports!!), and only reflect the actual state after restarting the port.What steps could I do in order to troubleshoot this issue?. What should I look for, or how do I discriminate the problem? Might it be a hardware issue, a PoE issue?

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Cisco Switching/Routing :: Nexus 5548 Rebooting Continually After Installing L3 Base License

Jul 30, 2012

we recently purchased L3 daughter cards (N55-D160L3-V2) for our 5548UPs along with the LAN Enterprise Services licenses (N55-LAN1K9).
 
I installed the cards and Ent Svcs lic this past weekend and everything went well excep that I couldn't enable the EIGRP feature .. apparently EIGRP requires the LAN Base (N55-BAS1K9-BUN) license even when you have the Enterprise lic installed, so I was able to dig up that license eventually (which comes with the L3 daughter card, incidentally). Another side effect of not installing the Lan Base lic is that the L3 card/module will be in an "offline" state until the Lan Base lic is installed. Either way, everything was working normally in L2 mode at this time.
 
So, here I was thinking I was ready to proceed with enabling L3 - this morning I installed the LAN Base license on one of the 5548s which apparently triggered the L3 Daughter card module to go active and triggered a switch reboot. Ok, not that big of a deal, knew that was probably coming. I expected the switch to come back up normally .. NOPE. The switch went into a continual reboot cycle where the console prompt would appear, then about 30 seconds later, would reboot again.
 
I finally ended up re-installing the original L2 card and the switch came right up. I see that LAN Base and LAN Enterprise are both still installed as well.
 
What have I done wrong here?  Why did the switch go into a continuous reboot cycle once I installed the LAN Base license?
 
Here are more details :
 
Software
BIOS:      version 3.5.0
loader:    version N/A

[Code]....

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Cisco Switching/Routing :: WS-C3560-48PS-S Show Power Inline But No Power Available

Apr 14, 2013

We have two switches of the same model (WS-C3560-48PS-S) that are not providing PoE. I'm trying to remotely determine what the cause of the issue is.
 
Here is some output.
 
Hostname#show power inlineAvailable:0.0(w)  Used:0.0(w)  Remaining:0.0(w)
Interface Admin  Oper       Power   Device              Class Max                            (Watts)--------- ------ ---------- ------- ------------------- ----- ----Fa0/1     auto   off        0.0     n/a                 n/a   15.4Fa0/2     auto   off        0.0     n/a                 n/a   15.4Fa0/3     auto   off        0.0     n/a                 n/a   15.4Fa0/4     auto   off        0.0     n/a                 n/a   15.4Fa0/5     auto   off        0.0     n/a                 n/a   15.4Fa0/6     auto   off        0.0     n/a                 n/a   15.4Fa0/7     auto   off        0.0     n/a                 n/a   15.4Fa0/8     auto   off        0.0     n/a                 n/a   15.4Fa0/9     auto   off        0.0     n/a                 n/a   15.4Fa0/10    auto   off        0.0     n/a                 n/a   15.4(code)

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Atheros AR9002WB-1NG Spontaneously Disconnects

Aug 12, 2012

My Toshiba x775-3d80v has a Qualcomm Atheros wireless adapter will spontaneously disconnect from my home network. No other device has issues. My PC is hooked up with Ethernet cable. My phone, my Xbox360, my PlayStation 3, my roommates Apple laptop, his iPhone, and my other roommates PC with a cheap USB wireless adapter all keep their connections. I have the latest driver I can find for the wireless card, 10.0.0.55, and have tinkered with the settings so Windows doesn't shut it down to save power. The laptop runs Windows 7 Home premium 64-bit. It has always kind have happened, but it was never bad enough to say the wireless card was necessarily the issue. Now my laptop disconnects from the network every hour sometimes every 20 minutes. I know when its going happen though. My Bluetooth mouse stops tracking correctly. It still knows my network and every other network in the building is there, so it not disabling itself. When I reconnect I have to run Windows Troubleshooter and have it reset the wireless adapter. Then it works great for the next 20 mins to an hour. My wireless router is a Cisco Linksys 4200.

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Cisco Switching/Routing :: 2911 - Can't Connect Print-server To Lan

Mar 20, 2013

We have:
Print server: TROY PocketPro 100s(Ethernet)
Cisco cat 2960
Cisco 2911 
Config Cisco 2911
 
mac address of print server logged in dhcp pool
 
i can connect print server with home assus router.he is get dhcp options correctly.
  
!
! Last configuration change at 18:13:02 Moscow Thu Sep 20 2012 by root
version 15.1
service timestamps debug datetime msec

[Code].....

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