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Can't access specific single IP address

Running Windows 7 SP1 x64 fully patched. As of a few days ago I can no longer access, via http, telnet, ping a specific IP address. I can access everything else on the network, whether it be LAN or WLAN.No updates, computer changes or installations between this working and not working.
IP address that I can't get to is valid (one of our A5500 Switches) and in same range, no access via IE, Firefox or Chrome. Cannot telnet, or ping, no blocks in place, nothing in firewall, have even turned firewall and AV off. Nothing in host/lmhosts. Nothing apparent in NIC Intel 82578DM (latest driver). Nothing on far end (IP trying to get to) blocking stopping my IP, though this has also been changed.
Can't access from my machine using another username/profile, have tried static and DHCP assigned IP address on machine.
CAN access from any other machine and with my profile on other computers.
Totally bizarre. Thanks for any pointers/help.
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mertsteve
Asked:
mertsteve
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2 Solutions
 
nobusCommented:
did you try it with another profile also?
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mertsteveAuthor Commented:
Yes, as stated, tried another profile on my computer with same issue, and my profile on a different computer works.
regards
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QlemoC++ DeveloperCommented:
Checked IPsec/IP filters in TCP/IP settings on your machine?
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mertsteveAuthor Commented:
Yes, no filtering or policies in place. By the way have also tried using host name (of destination IP) but still the same in all instances.
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QlemoC++ DeveloperCommented:
Next things I would try is to observe the MAC tables of both the switch and your PC for entries for each other. And then do an Ethernet capture with MS NetMon or WireShark while trying to connect to the switch.
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mertsteveAuthor Commented:
Thanks, I will give that shot when I have more time next week. I can access it whilst I RDP to another computer and then web managing from there so have time to resolve this issue which is just on local machine.
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mertsteveAuthor Commented:
Also cleared arp both ends, have run flashdns locally, and full purch of browser and any other caches.
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mertsteveAuthor Commented:
I will give 1/2 the points as it was the pointer to the problem, which was being set as an aggregated link there was a fault with this resulting in always dropping my connection. My MAC learnt on faulty port, once fixed connection is again okay.
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