3Com 3C421670A-US Driver Download (Official)
The 3C421670A-US is a network device manufactured by 3Com. Issues like weak Wi-Fi signal, slow DNS lookup, duplicate IP addresses, slow network and excessive CPU usage can be solved by updating this driver. Visitors have downloaded this file "ras1500software25.zip" 19 times with an aggregate rating of 5 out of 5 stars based on 7 reviews. The total disk space used for this update is 12.9 MB.
Video Tutorial: How to Download & Install a Driver
Official Source - Manufacturer Website
Supported Models
3C421670A-US
Manufacturers
Supported Operating Systems
Not Applicable
File Name
Versions
2.5 (14-Jul-2000)
Additional Notes
3Com® SuperStack® 3 Remote Access System 1500 Expansion Unit
SuperStack II RAS1500 Software release 2.5
Uploaded By
Rajesh (DG Staff Member) on 8-Jul-2004
Related Driver Updates
Driver Contents File List
The following files are found inside the driver download file.
| Name | Size | Date |
|---|---|---|
| Documentation.zip | 4.8 MB | 10 Jul 2000 |
| Documentation.zip/graphics/footer.map | 255 bytes | 17 Nov 1999 |
| Documentation.zip/graphics/title.map | 137 bytes | 17 Nov 1999 |
| Documentation.zip/pdfdocs/firmwareupgrade.pdf | 43.1 KB | 17 Jan 2000 |
| Documentation.zip/pdfdocs/io_module.pdf | 102.1 KB | 15 Nov 1999 |
| Documentation.zip/pdfdocs/management.pdf | 2.7 MB | 18 Jan 2000 |
| Documentation.zip/pdfdocs/memoryupgrade.pdf | 101.0 KB | 15 Nov 1999 |
| Documentation.zip/pdfdocs/quicksetup.pdf | 1.2 MB | 18 Nov 1999 |
| Documentation.zip/pdfdocs/reference.pdf | 2.4 MB | 15 Nov 1999 |
| Mibs/Pau/adm.mib | 48.2 KB | 4 Oct 1999 |
| Mibs/Pau/rfc1213.mib | 88.0 KB | 16 Jul 1998 |
| Mibs/Pau/rfc1406.mib | 56.3 KB | 19 Jun 1998 |
| Mibs/Pau/usrDS0.mib | 10.3 KB | 10 Nov 1999 |
| Mibs/Pau/usrDS1.mib | 40.4 KB | 18 May 1999 |
| Mibs/Pau/usrModem.mib | 107.3 KB | 18 May 1999 |
| Mibs/Pau/usrPN.mib | 14.3 KB | 19 Jun 1998 |
| Mibs/Pau/usrPPTP.mib | 5.1 KB | 19 Jun 1998 |
| Mibs/Pau/usrRM.mib | 41.4 KB | 19 Jun 1998 |
| Mibs/Pau/usrStack.mib | 10.5 KB | 24 May 1999 |
| Mibs/Pau/usrTemplate.mib | 63.0 KB | 19 Jun 1998 |
| Mibs/Pau/usrTopology.mib | 5.3 KB | 19 Jun 1998 |
| Mibs/Pau/usr_definitions.mib | 14.6 KB | 2 Oct 1998 |
| Mibs/RmPem/EEgg.mib | 4.1 KB | 5 Nov 1998 |
| Mibs/RmPem/REmib.mib | 42.3 KB | 5 Feb 1999 |
| Mibs/RmPem/UserManmib.mib | 53.2 KB | 5 Apr 1999 |
| Mibs/RmPem/adm.mib | 48.2 KB | 10 Nov 1999 |
| Mibs/RmPem/iana_iftypes.mib | 6.4 KB | 5 Nov 1998 |
| Mibs/RmPem/igmp.mib | 11.6 KB | 8 Nov 1999 |
| Mibs/RmPem/isdn.mib | 34.0 KB | 5 Nov 1998 |
| Mibs/RmPem/l2tp.mib | 62.7 KB | 8 Nov 1999 |
| Mibs/RmPem/novell_ipx.mib | 43.4 KB | 5 Nov 1998 |
| Mibs/RmPem/novell_rip_sap.mib | 13.0 KB | 5 Nov 1998 |
| Mibs/RmPem/pptp.mib | 43.3 KB | 8 Nov 1999 |
| Mibs/RmPem/radius_acct_client.mib | 10.0 KB | 8 Nov 1999 |
| Mibs/RmPem/rfc1213-config.mib | 22.6 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1213-egp.mib | 12.7 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1213-ip.mib | 61.4 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1213-snmp.mib | 14.7 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1213.mib | 88.1 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1213_config.mib | 22.7 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1406.mib | 56.3 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1407.mib | 54.6 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1573.mib | 54.3 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1611.mib | 40.4 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1612.mib | 42.6 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1650.mib | 21.5 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1659.mib | 26.2 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1695-atmaal.mib | 24.8 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1695-atmnet.mib | 86.0 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1695.mib | 124.8 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1742.mib | 132.9 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1742_base.mib | 3.0 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1742_forw.mib | 46.1 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1742_nbpzip.mib | 37.6 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1742_rtmp.mib | 11.5 KB | 5 Nov 1998 |
| Mibs/RmPem/rfc1850.mib | 102.2 KB | 5 Nov 1998 |
| Mibs/RmPem/usr-bulk-config.mib | 20.1 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-definitions.mib | 2.9 KB | 5 Nov 1998 |
| Mibs/RmPem/usr-drm.mib | 130.1 KB | 10 Nov 1999 |
| Mibs/RmPem/usr-ds0.mib | 24.5 KB | 29 Jun 1999 |
| Mibs/RmPem/usr-ds1.mib | 64.6 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-mms.mib | 40.4 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-modem.mib | 232.6 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-ots.mib | 9.3 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-pem.mib | 36.0 KB | 11 Jan 1999 |
| Mibs/RmPem/usr-pn.mib | 28.9 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-pptp.mib | 7.6 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-psu.mib | 17.9 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-sdl.mib | 20.1 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-setup.mib | 5.3 KB | 5 Nov 1998 |
| Mibs/RmPem/usr-stack-config.mib | 23.6 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-stack-textdefs.mib | 6.1 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-stack.mib | 23.5 KB | 17 Sep 1998 |
| Mibs/RmPem/usr-topology.mib | 13.0 KB | 17 Sep 1998 |
| Mibs/RmPem/usrDS0.mib | 10.3 KB | 30 Jun 1999 |
| Mibs/RmPem/usrDS1.mib | 40.4 KB | 9 Jul 1999 |
| Mibs/RmPem/usrGwcwan.mib | 19.7 KB | 8 Nov 1999 |
| Mibs/RmPem/usrL2TP.mib | 11.2 KB | 8 Nov 1999 |
| Mibs/RmPem/usrModem.mib | 106.2 KB | 5 Nov 1998 |
| Mibs/RmPem/usrNPPTP.mib | 46.9 KB | 8 Nov 1999 |
| Mibs/RmPem/usrPN.mib | 14.2 KB | 17 Sep 1998 |
| Mibs/RmPem/usrPPTP.mib | 5.1 KB | 5 Nov 1998 |
| Mibs/RmPem/usrRM.mib | 36.0 KB | 5 Nov 1998 |
| Mibs/RmPem/usrStack.mib | 10.4 KB | 7 Sep 1999 |
| Mibs/RmPem/usrTD.mib | 6.8 KB | 8 Nov 1999 |
| Mibs/RmPem/usrTopology.mib | 5.3 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_adsl.mib | 9.2 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_at.mib | 2.1 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_at_forw.mib | 9.5 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_at_nbpzip.mib | 48 bytes | 5 Nov 1998 |
| Mibs/RmPem/usr_atm_1483pvc.mib | 7.5 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_atm_1577_pvc.mib | 5.7 KB | 8 Nov 1999 |
| Mibs/RmPem/usr_atm_cc.mib | 7.4 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_atm_tc.mib | 28.2 KB | 17 Sep 1998 |
| Mibs/RmPem/usr_atmcfg.mib | 4.7 KB | 8 Nov 1999 |
| Mibs/RmPem/usr_br.mib | 43.5 KB | 17 Sep 1998 |
| Mibs/RmPem/usr_bri.mib | 42.4 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_cip.mib | 50.4 KB | 7 Sep 1999 |
| Mibs/RmPem/usr_cli.mib | 4.3 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_config.mib | 32.4 KB | 1 May 2000 |
| Mibs/RmPem/usr_d56k.mib | 3.2 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_definitions.mib | 17.5 KB | 4 May 1999 |
| Mibs/RmPem/usr_dhcp_proxy.mib | 33.7 KB | 30 Aug 1999 |
| Mibs/RmPem/usr_dhcp_relay.mib | 16.6 KB | 30 Aug 1999 |
| Mibs/RmPem/usr_dialout.mib | 9.9 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_dns.mib | 18.3 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_ds3.mib | 5.7 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_dsx3.mib | 6.6 KB | 8 Nov 1999 |
| Mibs/RmPem/usr_dynabri.mib | 11.3 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_event.mib | 5.2 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_fcp.mib | 20.0 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_filter.mib | 10.3 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_fr.mib | 58.6 KB | 20 Apr 2000 |
| Mibs/RmPem/usr_gwc_bsp.mib | 8.6 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_igmp.mib | 19.0 KB | 8 Nov 1999 |
| Mibs/RmPem/usr_ip.mib | 25.4 KB | 2 Sep 1999 |
| Mibs/RmPem/usr_ip_cfg.mib | 9.8 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_ip_routing.mib | 18.0 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_ipoa.mib | 35.9 KB | 17 Sep 1998 |
| Mibs/RmPem/usr_ipoa_arp.mib | 38.2 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_ipx.mib | 25.3 KB | 17 Sep 1998 |
| Mibs/RmPem/usr_ipx_cfg.mib | 14.3 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_ll_led.mib | 1.7 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_mpip.mib | 19.6 KB | 8 Nov 1999 |
| Mibs/RmPem/usr_nat.mib | 10.6 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_netserver.mib | 841.0 KB | 3 Jun 2000 |
| Mibs/RmPem/usr_ntp.mib | 17.4 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_ping.mib | 8.5 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_policy.mib | 7.1 KB | 8 Nov 1999 |
| Mibs/RmPem/usr_ppplink.mib | 19.4 KB | 26 Apr 2000 |
| Mibs/RmPem/usr_pppml.mib | 59.6 KB | 12 May 2000 |
| Mibs/RmPem/usr_remote_ping.mib | 23.2 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_slip.mib | 3.5 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_snmp.mib | 8.6 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_t1.mib | 2.6 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_tap.mib | 4.8 KB | 8 Nov 1999 |
| Mibs/RmPem/usr_tcp.mib | 3.1 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_term_prot.mib | 3.6 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_tftp.mib | 4.7 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_traceroute.mib | 15.9 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_v35.mib | 2.6 KB | 5 Nov 1998 |
| Mibs/RmPem/usr_vatm.mib | 44.8 KB | 5 Nov 1998 |
| Upgrade.zip | 987.1 KB | 10 Jul 2000 |
| Upgrade.zip/RASUpgrade.exe | 105.0 KB | 29 May 2000 |
| Upgrade.zip/Readme.pdf | 12.6 KB | 15 May 2000 |
| Upgrade.zip/Setup.exe | 35.8 KB | 3 Nov 1999 |
| Upgrade.zip/Setup.ini | 182 bytes | 5 Jun 2000 |
| Upgrade.zip/data1.cab | 564.1 KB | 5 Jun 2000 |
| Upgrade.zip/data1.cab/Upgrade_Utility/RASUpgrade.exe | 105.0 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/Upgrade_Utility/Readme.pdf | 12.6 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Engine_Engine_Files/corecomp.ini | 28.4 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Engine_Log_Services/ILog.dll | 213.0 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Engine_ScriptEngine/IScript.dll | 237.6 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Engine_SelfRegistering/ctor.dll | 151.6 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Engine_SelfRegistering/iuser.dll | 208.9 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Engine_SelfRegistering/objectps.dll | 32.8 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Support_English_Files/_IsRes.dll | 192.5 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Support_English_String_Tables/value.shl | 831 bytes | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Support_Language_Independent_OS_Independent_Files/LICENSE.TXT | 3.6 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Support_Language_Independent_OS_Independent_Files/Warranty.txt | 6.6 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Support_Non-SelfRegistering/default.pal | 1.2 KB | 2 Jun 2015 |
| Upgrade.zip/data1.cab/_Support_Non-SelfRegistering/isrt.dll | 307.2 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab | 118.0 KB | 5 Jun 2000 |
| Upgrade.zip/data2.cab/Upgrade_Utility/RASUpgrade.exe | 105.0 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/Upgrade_Utility/Readme.pdf | 12.6 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Engine_Engine_Files/corecomp.ini | 28.4 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Engine_Log_Services/ILog.dll | 213.0 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Engine_ScriptEngine/IScript.dll | 237.6 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Engine_SelfRegistering/ctor.dll | 151.6 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Engine_SelfRegistering/iuser.dll | 208.9 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Engine_SelfRegistering/objectps.dll | 32.8 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Support_English_Files/_IsRes.dll | 192.5 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Support_English_String_Tables/value.shl | 831 bytes | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Support_Language_Independent_OS_Independent_Files/LICENSE.TXT | 3.6 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Support_Language_Independent_OS_Independent_Files/Warranty.txt | 6.6 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Support_Non-SelfRegistering/default.pal | 1.2 KB | 2 Jun 2015 |
| Upgrade.zip/data2.cab/_Support_Non-SelfRegistering/isrt.dll | 307.2 KB | 2 Jun 2015 |
| Upgrade.zip/ikernel.ex_ | 256.3 KB | 12 Nov 1999 |
| Upgrade.zip/layout.bin | 442 bytes | 5 Jun 2000 |
| Upgrade/RASUpgrade.exe | 105.0 KB | 29 May 2000 |
| Upgrade/Readme.pdf | 12.6 KB | 15 May 2000 |
| Upgrade/Setup.exe | 35.8 KB | 3 Nov 1999 |
| Upgrade/Setup.ini | 182 bytes | 5 Jun 2000 |
| Upgrade/data1.cab | 564.1 KB | 5 Jun 2000 |
| Upgrade/data1.cab/Upgrade_Utility/RASUpgrade.exe | 105.0 KB | 2 Jun 2015 |
| Upgrade/data1.cab/Upgrade_Utility/Readme.pdf | 12.6 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Engine_Engine_Files/corecomp.ini | 28.4 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Engine_Log_Services/ILog.dll | 213.0 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Engine_ScriptEngine/IScript.dll | 237.6 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Engine_SelfRegistering/ctor.dll | 151.6 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Engine_SelfRegistering/iuser.dll | 208.9 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Engine_SelfRegistering/objectps.dll | 32.8 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Support_English_Files/_IsRes.dll | 192.5 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Support_English_String_Tables/value.shl | 831 bytes | 2 Jun 2015 |
| Upgrade/data1.cab/_Support_Language_Independent_OS_Independent_Files/LICENSE.TXT | 3.6 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Support_Language_Independent_OS_Independent_Files/Warranty.txt | 6.6 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Support_Non-SelfRegistering/default.pal | 1.2 KB | 2 Jun 2015 |
| Upgrade/data1.cab/_Support_Non-SelfRegistering/isrt.dll | 307.2 KB | 2 Jun 2015 |
| Upgrade/data2.cab | 118.0 KB | 5 Jun 2000 |
| Upgrade/data2.cab/Upgrade_Utility/RASUpgrade.exe | 105.0 KB | 2 Jun 2015 |
| Upgrade/data2.cab/Upgrade_Utility/Readme.pdf | 12.6 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Engine_Engine_Files/corecomp.ini | 28.4 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Engine_Log_Services/ILog.dll | 213.0 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Engine_ScriptEngine/IScript.dll | 237.6 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Engine_SelfRegistering/ctor.dll | 151.6 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Engine_SelfRegistering/iuser.dll | 208.9 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Engine_SelfRegistering/objectps.dll | 32.8 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Support_English_Files/_IsRes.dll | 192.5 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Support_English_String_Tables/value.shl | 831 bytes | 2 Jun 2015 |
| Upgrade/data2.cab/_Support_Language_Independent_OS_Independent_Files/LICENSE.TXT | 3.6 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Support_Language_Independent_OS_Independent_Files/Warranty.txt | 6.6 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Support_Non-SelfRegistering/default.pal | 1.2 KB | 2 Jun 2015 |
| Upgrade/data2.cab/_Support_Non-SelfRegistering/isrt.dll | 307.2 KB | 2 Jun 2015 |
| Upgrade/ikernel.ex_ | 256.3 KB | 12 Nov 1999 |
| Upgrade/layout.bin | 442 bytes | 5 Jun 2000 |
| pau_e1.dmf | 3.2 MB | 5 Jun 2000 |
| pau_t1.dmf | 3.1 MB | 5 Jun 2000 |
| paudiag.dmf | 570.6 KB | 5 Jun 2000 |
| ras1500.dmf | 2.9 MB | 5 Jun 2000 |
| rasboot.dmf | 459.1 KB | 5 Jun 2000 |
How to Update 3C421670A-US Device Drivers Quickly & Easily
Step 1 - Download Your Driver
To get the 3C421670A-US driver, click the green download button above. After you complete your download, move on to Step 2.
If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter 3Com 3C421670A-US into the search box above and then submit. In the results, choose the best match for your PC and operating system.
Tech Tip: If you are having trouble deciding which is the right driver, try the 3Com Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.
To find the newest driver, you may need to visit the 3Com website. Most major device manufacturers update their drivers regularly.
Step 2 - Install Your Driver
Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.
How to Open Device Manager
In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager
In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager
In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager
In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager
In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button
How to Install a driver from Device Manager
Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.
Select the Driver tab.
Click the Update Driver button and follow the instructions.
In most cases, you will need to reboot your computer in order for the driver update to take effect.
Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.
For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.