EA4500 -- Connection between 2 PC's fails

This issue has gone on for quite a while now.... As an IT person this is baffling to me:
Very simple home network -- 192.168.6.X/24 addresses handed out by a Linksys EA4500. About 16 wireless and 1 wired device total on network.
Two laptops - One with Windows 7 (IP= 192.168.6.32) , other with Windows 8.1( IP= 192.168.6.12) both wi-fi
Every day the win 7 laptop is left on all day, the win 8.1 laptop is sleeping. They are in different rooms. When I start up the win 8.1 laptop and try to access anything on the win 7 laptop (rdp, file shares, etc..) it can't connect.
A ping from .12 to .32 returns Destination Host Unreachable -- So it seems like a failed ARP request.
A ping from .32 to .12 returns a Time Out -- Mac address is found in the ARP table.
During this time both machines can connect to any other device on the network (NAS, wifi printer, etc..) and they can both get out to the internet. All other devices can connect to them. The built in ping from the EA4500 troubleshooting will succeed to both devices with no packet loss..
Once I give in and restart either the router or the win 7 laptop they can connect just fine. I just can't figure out why it is just these two devices that stop communicating.
So I'm truly at a loss here -- I will be asking the same question on Microsoft forums, but 10 bucks says they come back to me and say it's a network issue...
Thanks!!

dmavica wrote:
This issue has gone on for quite a while now.... As an IT person this is baffling to me:
Very simple home network -- 192.168.6.X/24 addresses handed out by a Linksys EA4500. About 16 wireless and 1 wired device total on network.
Two laptops - One with Windows 7 (IP= 192.168.6.32) , other with Windows 8.1( IP= 192.168.6.12) both wi-fi
Every day the win 7 laptop is left on all day, the win 8.1 laptop is sleeping. They are in different rooms. When I start up the win 8.1 laptop and try to access anything on the win 7 laptop (rdp, file shares, etc..) it can't connect.
A ping from .12 to .32 returns Destination Host Unreachable -- So it seems like a failed ARP request.
A ping from .32 to .12 returns a Time Out -- Mac address is found in the ARP table.
During this time both machines can connect to any other device on the network (NAS, wifi printer, etc..) and they can both get out to the internet. All other devices can connect to them. The built in ping from the EA4500 troubleshooting will succeed to both devices with no packet loss..
Once I give in and restart either the router or the win 7 laptop they can connect just fine. I just can't figure out why it is just these two devices that stop communicating.
So I'm truly at a loss here -- I will be asking the same question on Microsoft forums, but 10 bucks says they come back to me and say it's a network issue...
Thanks!!
Have you tried checking on the firewall? Disable the computer's firewall temporarily and see if it works. You may also want to check on some antivirus that may contain firewall and temporarily disable the firewall.

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Stefan Gregor wrote:
What could this be?
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Edited by: skyrma on Feb 24, 2012 2:46 PM
Edited by: skyrma on Feb 24, 2012 2:47 PM
Edited by: skyrma on Feb 24, 2012 2:47 PM

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; short preserve case = no
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; case sensitive = no
#============================ Share Definitions ==============================
[homes]
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writable = yes
# Un-comment the following and create the netlogon directory for Domain Logons
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;[Profiles]
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# NOTE: If you have a BSD-style print system there is no need to
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[printers]
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printable = yes
[i]<everything else is commented out>[/i]
I have no windows machines so it's only my laptop and desktop both running linux that I need to connect to this. I have tried googling and searching these forums to no avail
Thanks for any help that can be offered
Mike

If I run the following (on the machine I'm trying to set up the share)
smbclient -L localhost -U%
I got the following output
Connection to localhost failed (Error NT_STATUS_CONNECTION_REFUSED)
so I thought it might be something incorrect with the iptables side of things, however I haven't really touched that at all and it seems to look correct
iptables -nvL
Chain INPUT (policy ACCEPT 667 packets, 79977 bytes)
pkts bytes target prot opt in out source destination
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 157 packets, 20724 bytes)
pkts bytes target prot opt in out source destination
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Fail to Convert between UTF8 and UCS2: fail UTF Conversion

I'm using the JReport software, a product which generates java reports based on a jdbc datasource.
during installation the JReport installation program located Microsoft java VM installed on my PC and I accepted this option to be working JVM for JReport.
This worked very well. I have installed jdbc driver for Oracle 8.1.5 that worked fine as well on the design time (I have connected to Oracle, I have seen my tables and other information on my DB).
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You can find asa-config and show-tech as attachment. I have added also some screenshots from RV215w.
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crypto map STATIC_MAP_CALLING_DYMANIC_MAP 10 IPSec-isakmp dynamic MY_DYNAMIC_MAP
!--- 2B.now apply static map on ASA OUTSIDE Interface
crypto map STATIC_MAP_CALLING_DYMANIC_MAP interface outside
!--- 3. Configure the phase I ISAKMP policy
crypto isakmp policy 10
authentication pre-share
encryption des
hash md5
group 2
lifetime 86400
!--- 4. Configure the default L2L tunnel group parameters
tunnel-group DefaultL2LGroup IPSec-attributes
pre-shared-key *
Plase rate if you like my post.
Best Regards
Sachin Garg

I lost the connection between my MacBook Air and Bluetooth wireless speakers (Logitech) when updating to OS 10.7.4. Tried all the "fixes" I could find, no results!

I lost the connection between my MacBook Air and Bluetooth wireless speakers (Logitech) when updating to OS 10.7.4. Tried all the "fixes" I could find, no results! Can you help?

Error message as above and below:
'Send Message Error
The message could not be sent because connecting to SMTP server mail.btinternet.com failed.
The server may be unavailable or is refusing SMTP connections.' (etc.)
BT won't deal with this - they redirect me to a 'partner' who want to charge to discuss the problem. Nice, eh!

EA4500 - Connection Speed

Got the EA4500 & very excited, but the connection speed drops significantly when 2 machines are on web in same room. Tips?

There are four (4) reasons why the wireless connection between your Linksys router and your devices such as computers, laptops is intermittent or is experiencing a dropping speed. These are:
• MTU Size
• Frequency interference from other wireless devices
• Low signal quality received from your wireless router
• Router’s firmware needs an upgrade
Frequent wireless speed can be resolved by doing the following:
i. Adjusting the Maximum Transmission Unit (MTU) size
ii. Reducing Wireless Interference
iii. Customizing the Wireless Settings of the Router
iv. Updating the Firmware of the Router
Here is the link for resolving dropping wireless speed: http://www6.nohold.net/Cisco2/ukp.aspx?vw=1&docid=172c1dae41534ddd818c560b60c7c230_4029.xml&pid=80&r...

"A connection to the server has failed" occurs in 3 minitues

I have deployed a web application(ADF) that inserts batch of records(over 50k) to the DB and client is expected to wait for the response.
But after client invoke the insert browser produce "A connection to the server has failed" java script error exactly after 3 minutes.
So the connection between client and Web Logic 10.3 is failing. Insert to DB continues to work.
Is this due to a timeout, why this error comes? How to configure web logic to avoid this.
-Prasad

PR,
You've been given some advice on the ADF forum in terms of how to deal with this (e.g., make the process asynchronous and use an af:poll/af:progressBar to keep the user informed).
Expecting a single HTTP request to work without timing out when you insert 50,000 rows one-by-one into the database is unrealistic.
John

EA4500 -- Connection between 2 PC's fails

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